171948980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{8243}}^1$

素因数の和:8408

約数の個数: 48

約数和(自身を含む): 415497600

約数和(自身を除く): 243548620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 8243, 10430, 16486, 20860, 32972, 41215, 57701, 82430, 115402, 164860, 230804, 288505, 577010, 1154020, 1228207, 2456414, 4912828, 6141035, 8597449, 12282070, 17194898, 24564140, 34389796, 42987245, 85974490, 171948980]

約数ペア:

[(1, 171948980), (2, 85974490), (4, 42987245), (5, 34389796), (7, 24564140), (10, 17194898), (14, 12282070), (20, 8597449), (28, 6141035), (35, 4912828), (70, 2456414), (140, 1228207), (149, 1154020), (298, 577010), (596, 288505), (745, 230804), (1043, 164860), (1490, 115402), (2086, 82430), (2980, 57701), (4172, 41215), (5215, 32972), (8243, 20860), (10430, 16486)]