18789214778860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1\times {\mathrm{991}}^1\times {\mathrm{22123}}^1$

素因数の和:23783

約数の個数: 96

約数和(自身を含む): 40108244908032

約数和(自身を除く): 21319030129172

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 587, 730, 991, 1174, 1460, 1982, 2348, 2935, 3964, 4955, 5870, 9910, 11740, 19820, 22123, 42851, 44246, 72343, 85702, 88492, 110615, 144686, 171404, 214255, 221230, 289372, 361715, 428510, 442460, 581717, 723430, 857020, 1163434, 1446860, 1614979, 2326868, 2908585, 3229958, 5817170, 6459916, 8074895, 11634340, 12986201, 16149790, 21923893, 25972402, 32299580, 42465341, 43847786, 51944804, 64931005, 84930682, 87695572, 109619465, 129862010, 169861364, 212326705, 219238930, 259724020, 424653410, 438477860, 849306820, 947992673, 1600444189, 1895985346, 3200888378, 3791970692, 4739963365, 6401776756, 8002220945, 9479926730, 12869325191, 16004441890, 18959853460, 25738650382, 32008883780, 51477300764, 64346625955, 128693251910, 257386503820, 939460738943, 1878921477886, 3757842955772, 4697303694715, 9394607389430, 18789214778860]

約数ペア:

[(1, 18789214778860), (2, 9394607389430), (4, 4697303694715), (5, 3757842955772), (10, 1878921477886), (20, 939460738943), (73, 257386503820), (146, 128693251910), (292, 64346625955), (365, 51477300764), (587, 32008883780), (730, 25738650382), (991, 18959853460), (1174, 16004441890), (1460, 12869325191), (1982, 9479926730), (2348, 8002220945), (2935, 6401776756), (3964, 4739963365), (4955, 3791970692), (5870, 3200888378), (9910, 1895985346), (11740, 1600444189), (19820, 947992673), (22123, 849306820), (42851, 438477860), (44246, 424653410), (72343, 259724020), (85702, 219238930), (88492, 212326705), (110615, 169861364), (144686, 129862010), (171404, 109619465), (214255, 87695572), (221230, 84930682), (289372, 64931005), (361715, 51944804), (428510, 43847786), (442460, 42465341), (581717, 32299580), (723430, 25972402), (857020, 21923893), (1163434, 16149790), (1446860, 12986201), (1614979, 11634340), (2326868, 8074895), (2908585, 6459916), (3229958, 5817170)]