21156013920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{2843}}^1$

素因数の和:3317

約数の個数: 192

約数和(自身を含む): 68630042880

約数和(自身を除く): 47474028960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 74, 80, 96, 111, 120, 148, 160, 185, 222, 240, 296, 370, 419, 444, 480, 555, 592, 740, 838, 888, 1110, 1184, 1257, 1480, 1676, 1776, 2095, 2220, 2514, 2843, 2960, 3352, 3552, 4190, 4440, 5028, 5686, 5920, 6285, 6704, 8380, 8529, 8880, 10056, 11372, 12570, 13408, 14215, 15503, 16760, 17058, 17760, 20112, 22744, 25140, 28430, 31006, 33520, 34116, 40224, 42645, 45488, 46509, 50280, 56860, 62012, 67040, 68232, 77515, 85290, 90976, 93018, 100560, 105191, 113720, 124024, 136464, 155030, 170580, 186036, 201120, 210382, 227440, 232545, 248048, 272928, 310060, 315573, 341160, 372072, 420764, 454880, 465090, 496096, 525955, 620120, 631146, 682320, 744144, 841528, 930180, 1051910, 1191217, 1240240, 1262292, 1364640, 1488288, 1577865, 1683056, 1860360, 2103820, 2382434, 2480480, 2524584, 3155730, 3366112, 3573651, 3720720, 4207640, 4764868, 5049168, 5956085, 6311460, 7147302, 7441440, 8415280, 9529736, 10098336, 11912170, 12622920, 14294604, 16830560, 17868255, 19059472, 23824340, 25245840, 28589208, 35736510, 38118944, 44075029, 47648680, 50491680, 57178416, 71473020, 88150058, 95297360, 114356832, 132225087, 142946040, 176300116, 190594720, 220375145, 264450174, 285892080, 352600232, 440750290, 528900348, 571784160, 661125435, 705200464, 881500580, 1057800696, 1322250870, 1410400928, 1763001160, 2115601392, 2644501740, 3526002320, 4231202784, 5289003480, 7052004640, 10578006960, 21156013920]

約数ペア:

[(1, 21156013920), (2, 10578006960), (3, 7052004640), (4, 5289003480), (5, 4231202784), (6, 3526002320), (8, 2644501740), (10, 2115601392), (12, 1763001160), (15, 1410400928), (16, 1322250870), (20, 1057800696), (24, 881500580), (30, 705200464), (32, 661125435), (37, 571784160), (40, 528900348), (48, 440750290), (60, 352600232), (74, 285892080), (80, 264450174), (96, 220375145), (111, 190594720), (120, 176300116), (148, 142946040), (160, 132225087), (185, 114356832), (222, 95297360), (240, 88150058), (296, 71473020), (370, 57178416), (419, 50491680), (444, 47648680), (480, 44075029), (555, 38118944), (592, 35736510), (740, 28589208), (838, 25245840), (888, 23824340), (1110, 19059472), (1184, 17868255), (1257, 16830560), (1480, 14294604), (1676, 12622920), (1776, 11912170), (2095, 10098336), (2220, 9529736), (2514, 8415280), (2843, 7441440), (2960, 7147302), (3352, 6311460), (3552, 5956085), (4190, 5049168), (4440, 4764868), (5028, 4207640), (5686, 3720720), (5920, 3573651), (6285, 3366112), (6704, 3155730), (8380, 2524584), (8529, 2480480), (8880, 2382434), (10056, 2103820), (11372, 1860360), (12570, 1683056), (13408, 1577865), (14215, 1488288), (15503, 1364640), (16760, 1262292), (17058, 1240240), (17760, 1191217), (20112, 1051910), (22744, 930180), (25140, 841528), (28430, 744144), (31006, 682320), (33520, 631146), (34116, 620120), (40224, 525955), (42645, 496096), (45488, 465090), (46509, 454880), (50280, 420764), (56860, 372072), (62012, 341160), (67040, 315573), (68232, 310060), (77515, 272928), (85290, 248048), (90976, 232545), (93018, 227440), (100560, 210382), (105191, 201120), (113720, 186036), (124024, 170580), (136464, 155030)]