155117860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 354017664

約数和(自身を除く): 198899804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 289, 340, 470, 571, 578, 799, 940, 1142, 1156, 1445, 1598, 2284, 2855, 2890, 3196, 3995, 5710, 5780, 7990, 9707, 11420, 13583, 15980, 19414, 26837, 27166, 38828, 48535, 53674, 54332, 67915, 97070, 107348, 134185, 135830, 165019, 194140, 268370, 271660, 330038, 456229, 536740, 660076, 825095, 912458, 1650190, 1824916, 2281145, 3300380, 4562290, 7755893, 9124580, 15511786, 31023572, 38779465, 77558930, 155117860]

約数ペア:

[(1, 155117860), (2, 77558930), (4, 38779465), (5, 31023572), (10, 15511786), (17, 9124580), (20, 7755893), (34, 4562290), (47, 3300380), (68, 2281145), (85, 1824916), (94, 1650190), (170, 912458), (188, 825095), (235, 660076), (289, 536740), (340, 456229), (470, 330038), (571, 271660), (578, 268370), (799, 194140), (940, 165019), (1142, 135830), (1156, 134185), (1445, 107348), (1598, 97070), (2284, 67915), (2855, 54332), (2890, 53674), (3196, 48535), (3995, 38828), (5710, 27166), (5780, 26837), (7990, 19414), (9707, 15980), (11420, 13583)]