19801758960

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53611}}^1$

素因数の和:53658

約数の個数: 240

約数和(自身を含む): 72594936960

約数和(自身を除く): 52793178000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 243, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 486, 513, 540, 570, 648, 684, 720, 760, 810, 855, 912, 972, 1026, 1080, 1140, 1215, 1296, 1368, 1520, 1539, 1620, 1710, 1944, 2052, 2160, 2280, 2430, 2565, 2736, 3078, 3240, 3420, 3888, 4104, 4560, 4617, 4860, 5130, 6156, 6480, 6840, 7695, 8208, 9234, 9720, 10260, 12312, 13680, 15390, 18468, 19440, 20520, 23085, 24624, 30780, 36936, 41040, 46170, 53611, 61560, 73872, 92340, 107222, 123120, 160833, 184680, 214444, 268055, 321666, 369360, 428888, 482499, 536110, 643332, 804165, 857776, 964998, 1018609, 1072220, 1286664, 1447497, 1608330, 1929996, 2037218, 2144440, 2412495, 2573328, 2894994, 3055827, 3216660, 3859992, 4074436, 4288880, 4342491, 4824990, 5093045, 5789988, 6111654, 6433320, 7237485, 7719984, 8148872, 8684982, 9167481, 9649980, 10186090, 11579976, 12223308, 12866640, 13027473, 14474970, 15279135, 16297744, 17369964, 18334962, 19299960, 20372180, 21712455, 23159952, 24446616, 26054946, 27502443, 28949940, 30558270, 34739928, 36669924, 38599920, 40744360, 43424910, 45837405, 48893232, 52109892, 55004886, 57899880, 61116540, 65137365, 69479856, 73339848, 81488720, 82507329, 86849820, 91674810, 104219784, 110009772, 115799760, 122233080, 130274730, 137512215, 146679696, 165014658, 173699640, 183349620, 208439568, 220019544, 244466160, 247521987, 260549460, 275024430, 330029316, 347399280, 366699240, 412536645, 440039088, 495043974, 521098920, 550048860, 660058632, 733398480, 825073290, 990087948, 1042197840, 1100097720, 1237609935, 1320117264, 1650146580, 1980175896, 2200195440, 2475219870, 3300293160, 3960351792, 4950439740, 6600586320, 9900879480, 19801758960]

約数ペア:

[(1, 19801758960), (2, 9900879480), (3, 6600586320), (4, 4950439740), (5, 3960351792), (6, 3300293160), (8, 2475219870), (9, 2200195440), (10, 1980175896), (12, 1650146580), (15, 1320117264), (16, 1237609935), (18, 1100097720), (19, 1042197840), (20, 990087948), (24, 825073290), (27, 733398480), (30, 660058632), (36, 550048860), (38, 521098920), (40, 495043974), (45, 440039088), (48, 412536645), (54, 366699240), (57, 347399280), (60, 330029316), (72, 275024430), (76, 260549460), (80, 247521987), (81, 244466160), (90, 220019544), (95, 208439568), (108, 183349620), (114, 173699640), (120, 165014658), (135, 146679696), (144, 137512215), (152, 130274730), (162, 122233080), (171, 115799760), (180, 110009772), (190, 104219784), (216, 91674810), (228, 86849820), (240, 82507329), (243, 81488720), (270, 73339848), (285, 69479856), (304, 65137365), (324, 61116540), (342, 57899880), (360, 55004886), (380, 52109892), (405, 48893232), (432, 45837405), (456, 43424910), (486, 40744360), (513, 38599920), (540, 36669924), (570, 34739928), (648, 30558270), (684, 28949940), (720, 27502443), (760, 26054946), (810, 24446616), (855, 23159952), (912, 21712455), (972, 20372180), (1026, 19299960), (1080, 18334962), (1140, 17369964), (1215, 16297744), (1296, 15279135), (1368, 14474970), (1520, 13027473), (1539, 12866640), (1620, 12223308), (1710, 11579976), (1944, 10186090), (2052, 9649980), (2160, 9167481), (2280, 8684982), (2430, 8148872), (2565, 7719984), (2736, 7237485), (3078, 6433320), (3240, 6111654), (3420, 5789988), (3888, 5093045), (4104, 4824990), (4560, 4342491), (4617, 4288880), (4860, 4074436), (5130, 3859992), (6156, 3216660), (6480, 3055827), (6840, 2894994), (7695, 2573328), (8208, 2412495), (9234, 2144440), (9720, 2037218), (10260, 1929996), (12312, 1608330), (13680, 1447497), (15390, 1286664), (18468, 1072220), (19440, 1018609), (20520, 964998), (23085, 857776), (24624, 804165), (30780, 643332), (36936, 536110), (41040, 482499), (46170, 428888), (53611, 369360), (61560, 321666), (73872, 268055), (92340, 214444), (107222, 184680), (123120, 160833)]