81729830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 198374400

約数和(自身を除く): 116644570

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 29, 35, 38, 58, 65, 70, 91, 95, 130, 133, 145, 163, 182, 190, 203, 247, 266, 290, 326, 377, 406, 455, 494, 551, 665, 754, 815, 910, 1015, 1102, 1141, 1235, 1330, 1630, 1729, 1885, 2030, 2119, 2282, 2470, 2639, 2755, 3097, 3458, 3770, 3857, 4238, 4727, 5278, 5510, 5705, 6194, 7163, 7714, 8645, 9454, 10595, 11410, 13195, 14326, 14833, 15485, 17290, 19285, 21190, 21679, 23635, 26390, 29666, 30970, 33089, 35815, 38570, 40261, 43358, 47270, 50141, 61451, 66178, 71630, 74165, 80522, 89813, 100282, 108395, 122902, 148330, 165445, 179626, 201305, 216790, 250705, 281827, 307255, 330890, 402610, 430157, 449065, 501410, 563654, 614510, 628691, 860314, 898130, 1167569, 1257382, 1409135, 2150785, 2335138, 2818270, 3143455, 4301570, 5837845, 6286910, 8172983, 11675690, 16345966, 40864915, 81729830]

約数ペア:

[(1, 81729830), (2, 40864915), (5, 16345966), (7, 11675690), (10, 8172983), (13, 6286910), (14, 5837845), (19, 4301570), (26, 3143455), (29, 2818270), (35, 2335138), (38, 2150785), (58, 1409135), (65, 1257382), (70, 1167569), (91, 898130), (95, 860314), (130, 628691), (133, 614510), (145, 563654), (163, 501410), (182, 449065), (190, 430157), (203, 402610), (247, 330890), (266, 307255), (290, 281827), (326, 250705), (377, 216790), (406, 201305), (455, 179626), (494, 165445), (551, 148330), (665, 122902), (754, 108395), (815, 100282), (910, 89813), (1015, 80522), (1102, 74165), (1141, 71630), (1235, 66178), (1330, 61451), (1630, 50141), (1729, 47270), (1885, 43358), (2030, 40261), (2119, 38570), (2282, 35815), (2470, 33089), (2639, 30970), (2755, 29666), (3097, 26390), (3458, 23635), (3770, 21679), (3857, 21190), (4238, 19285), (4727, 17290), (5278, 15485), (5510, 14833), (5705, 14326), (6194, 13195), (7163, 11410), (7714, 10595), (8645, 9454)]