221417760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 725034240

約数和(自身を除く): 503616480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 73, 80, 89, 96, 120, 142, 146, 160, 178, 213, 219, 240, 267, 284, 292, 355, 356, 365, 426, 438, 445, 480, 534, 568, 584, 710, 712, 730, 852, 876, 890, 1065, 1068, 1095, 1136, 1168, 1335, 1420, 1424, 1460, 1704, 1752, 1780, 2130, 2136, 2190, 2272, 2336, 2670, 2840, 2848, 2920, 3408, 3504, 3560, 4260, 4272, 4380, 5183, 5340, 5680, 5840, 6319, 6497, 6816, 7008, 7120, 8520, 8544, 8760, 10366, 10680, 11360, 11680, 12638, 12994, 14240, 15549, 17040, 17520, 18957, 19491, 20732, 21360, 25276, 25915, 25988, 31098, 31595, 32485, 34080, 35040, 37914, 38982, 41464, 42720, 50552, 51830, 51976, 62196, 63190, 64970, 75828, 77745, 77964, 82928, 94785, 97455, 101104, 103660, 103952, 124392, 126380, 129940, 151656, 155490, 155928, 165856, 189570, 194910, 202208, 207320, 207904, 248784, 252760, 259880, 303312, 310980, 311856, 379140, 389820, 414640, 461287, 497568, 505520, 519760, 606624, 621960, 623712, 758280, 779640, 829280, 922574, 1011040, 1039520, 1243920, 1383861, 1516560, 1559280, 1845148, 2306435, 2487840, 2767722, 3033120, 3118560, 3690296, 4612870, 5535444, 6919305, 7380592, 9225740, 11070888, 13838610, 14761184, 18451480, 22141776, 27677220, 36902960, 44283552, 55354440, 73805920, 110708880, 221417760]

約数ペア:

[(1, 221417760), (2, 110708880), (3, 73805920), (4, 55354440), (5, 44283552), (6, 36902960), (8, 27677220), (10, 22141776), (12, 18451480), (15, 14761184), (16, 13838610), (20, 11070888), (24, 9225740), (30, 7380592), (32, 6919305), (40, 5535444), (48, 4612870), (60, 3690296), (71, 3118560), (73, 3033120), (80, 2767722), (89, 2487840), (96, 2306435), (120, 1845148), (142, 1559280), (146, 1516560), (160, 1383861), (178, 1243920), (213, 1039520), (219, 1011040), (240, 922574), (267, 829280), (284, 779640), (292, 758280), (355, 623712), (356, 621960), (365, 606624), (426, 519760), (438, 505520), (445, 497568), (480, 461287), (534, 414640), (568, 389820), (584, 379140), (710, 311856), (712, 310980), (730, 303312), (852, 259880), (876, 252760), (890, 248784), (1065, 207904), (1068, 207320), (1095, 202208), (1136, 194910), (1168, 189570), (1335, 165856), (1420, 155928), (1424, 155490), (1460, 151656), (1704, 129940), (1752, 126380), (1780, 124392), (2130, 103952), (2136, 103660), (2190, 101104), (2272, 97455), (2336, 94785), (2670, 82928), (2840, 77964), (2848, 77745), (2920, 75828), (3408, 64970), (3504, 63190), (3560, 62196), (4260, 51976), (4272, 51830), (4380, 50552), (5183, 42720), (5340, 41464), (5680, 38982), (5840, 37914), (6319, 35040), (6497, 34080), (6816, 32485), (7008, 31595), (7120, 31098), (8520, 25988), (8544, 25915), (8760, 25276), (10366, 21360), (10680, 20732), (11360, 19491), (11680, 18957), (12638, 17520), (12994, 17040), (14240, 15549)]