667420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 1608768

約数和(自身を除く): 941348

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 151, 170, 221, 260, 302, 340, 442, 604, 755, 884, 1105, 1510, 1963, 2210, 2567, 3020, 3926, 4420, 5134, 7852, 9815, 10268, 12835, 19630, 25670, 33371, 39260, 51340, 66742, 133484, 166855, 333710, 667420]

約数ペア:

[(1, 667420), (2, 333710), (4, 166855), (5, 133484), (10, 66742), (13, 51340), (17, 39260), (20, 33371), (26, 25670), (34, 19630), (52, 12835), (65, 10268), (68, 9815), (85, 7852), (130, 5134), (151, 4420), (170, 3926), (221, 3020), (260, 2567), (302, 2210), (340, 1963), (442, 1510), (604, 1105), (755, 884)]