220721280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 256

約数和(自身を含む): 781401600

約数和(自身を除く): 560680320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 37, 39, 40, 48, 52, 60, 64, 65, 74, 78, 80, 96, 104, 111, 120, 128, 130, 148, 156, 160, 185, 192, 195, 208, 222, 239, 240, 260, 296, 312, 320, 370, 384, 390, 416, 444, 478, 480, 481, 520, 555, 592, 624, 640, 717, 740, 780, 832, 888, 956, 960, 962, 1040, 1110, 1184, 1195, 1248, 1434, 1443, 1480, 1560, 1664, 1776, 1912, 1920, 1924, 2080, 2220, 2368, 2390, 2405, 2496, 2868, 2886, 2960, 3107, 3120, 3552, 3585, 3824, 3848, 4160, 4440, 4736, 4780, 4810, 4992, 5736, 5772, 5920, 6214, 6240, 7104, 7170, 7215, 7648, 7696, 8320, 8843, 8880, 9321, 9560, 9620, 11472, 11544, 11840, 12428, 12480, 14208, 14340, 14430, 15296, 15392, 15535, 17686, 17760, 18642, 19120, 19240, 22944, 23088, 23680, 24856, 24960, 26529, 28680, 28860, 30592, 30784, 31070, 35372, 35520, 37284, 38240, 38480, 44215, 45888, 46176, 46605, 49712, 53058, 57360, 57720, 61568, 62140, 70744, 71040, 74568, 76480, 76960, 88430, 91776, 92352, 93210, 99424, 106116, 114720, 114959, 115440, 124280, 132645, 141488, 149136, 152960, 153920, 176860, 184704, 186420, 198848, 212232, 229440, 229918, 230880, 248560, 265290, 282976, 298272, 307840, 344877, 353720, 372840, 397696, 424464, 458880, 459836, 461760, 497120, 530580, 565952, 574795, 596544, 689754, 707440, 745680, 848928, 919672, 923520, 994240, 1061160, 1131904, 1149590, 1193088, 1379508, 1414880, 1491360, 1697856, 1724385, 1839344, 1988480, 2122320, 2299180, 2759016, 2829760, 2982720, 3395712, 3448770, 3678688, 4244640, 4598360, 5518032, 5659520, 5965440, 6897540, 7357376, 8489280, 9196720, 11036064, 13795080, 14714752, 16978560, 18393440, 22072128, 27590160, 36786880, 44144256, 55180320, 73573760, 110360640, 220721280]

約数ペア:

[(1, 220721280), (2, 110360640), (3, 73573760), (4, 55180320), (5, 44144256), (6, 36786880), (8, 27590160), (10, 22072128), (12, 18393440), (13, 16978560), (15, 14714752), (16, 13795080), (20, 11036064), (24, 9196720), (26, 8489280), (30, 7357376), (32, 6897540), (37, 5965440), (39, 5659520), (40, 5518032), (48, 4598360), (52, 4244640), (60, 3678688), (64, 3448770), (65, 3395712), (74, 2982720), (78, 2829760), (80, 2759016), (96, 2299180), (104, 2122320), (111, 1988480), (120, 1839344), (128, 1724385), (130, 1697856), (148, 1491360), (156, 1414880), (160, 1379508), (185, 1193088), (192, 1149590), (195, 1131904), (208, 1061160), (222, 994240), (239, 923520), (240, 919672), (260, 848928), (296, 745680), (312, 707440), (320, 689754), (370, 596544), (384, 574795), (390, 565952), (416, 530580), (444, 497120), (478, 461760), (480, 459836), (481, 458880), (520, 424464), (555, 397696), (592, 372840), (624, 353720), (640, 344877), (717, 307840), (740, 298272), (780, 282976), (832, 265290), (888, 248560), (956, 230880), (960, 229918), (962, 229440), (1040, 212232), (1110, 198848), (1184, 186420), (1195, 184704), (1248, 176860), (1434, 153920), (1443, 152960), (1480, 149136), (1560, 141488), (1664, 132645), (1776, 124280), (1912, 115440), (1920, 114959), (1924, 114720), (2080, 106116), (2220, 99424), (2368, 93210), (2390, 92352), (2405, 91776), (2496, 88430), (2868, 76960), (2886, 76480), (2960, 74568), (3107, 71040), (3120, 70744), (3552, 62140), (3585, 61568), (3824, 57720), (3848, 57360), (4160, 53058), (4440, 49712), (4736, 46605), (4780, 46176), (4810, 45888), (4992, 44215), (5736, 38480), (5772, 38240), (5920, 37284), (6214, 35520), (6240, 35372), (7104, 31070), (7170, 30784), (7215, 30592), (7648, 28860), (7696, 28680), (8320, 26529), (8843, 24960), (8880, 24856), (9321, 23680), (9560, 23088), (9620, 22944), (11472, 19240), (11544, 19120), (11840, 18642), (12428, 17760), (12480, 17686), (14208, 15535), (14340, 15392), (14430, 15296)]