20015697460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{19697}}^1$

素因数の和:19897

約数の個数: 96

約数和(自身を含む): 47653401600

約数和(自身を除く): 27637704140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 149, 155, 220, 298, 310, 341, 596, 620, 682, 745, 1364, 1490, 1639, 1705, 2980, 3278, 3410, 4619, 6556, 6820, 8195, 9238, 16390, 18476, 19697, 23095, 32780, 39394, 46190, 50809, 78788, 92380, 98485, 101618, 196970, 203236, 216667, 254045, 393940, 433334, 508090, 610607, 866668, 1016180, 1083335, 1221214, 2166670, 2442428, 2934853, 3053035, 4333340, 5869706, 6106070, 6716677, 11739412, 12212140, 13433354, 14674265, 26866708, 29348530, 32283383, 33583385, 58697060, 64566766, 67166770, 90980443, 129133532, 134333540, 161416915, 181960886, 322833830, 363921772, 454902215, 645667660, 909804430, 1000784873, 1819608860, 2001569746, 4003139492, 5003924365, 10007848730, 20015697460]

約数ペア:

[(1, 20015697460), (2, 10007848730), (4, 5003924365), (5, 4003139492), (10, 2001569746), (11, 1819608860), (20, 1000784873), (22, 909804430), (31, 645667660), (44, 454902215), (55, 363921772), (62, 322833830), (110, 181960886), (124, 161416915), (149, 134333540), (155, 129133532), (220, 90980443), (298, 67166770), (310, 64566766), (341, 58697060), (596, 33583385), (620, 32283383), (682, 29348530), (745, 26866708), (1364, 14674265), (1490, 13433354), (1639, 12212140), (1705, 11739412), (2980, 6716677), (3278, 6106070), (3410, 5869706), (4619, 4333340), (6556, 3053035), (6820, 2934853), (8195, 2442428), (9238, 2166670), (16390, 1221214), (18476, 1083335), (19697, 1016180), (23095, 866668), (32780, 610607), (39394, 508090), (46190, 433334), (50809, 393940), (78788, 254045), (92380, 216667), (98485, 203236), (101618, 196970)]