91216760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 211891680

約数和(自身を除く): 120674920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 181, 215, 293, 344, 362, 430, 586, 724, 860, 905, 1172, 1448, 1465, 1720, 1810, 2344, 2930, 3620, 5860, 7240, 7783, 11720, 12599, 15566, 25198, 31132, 38915, 50396, 53033, 62264, 62995, 77830, 100792, 106066, 125990, 155660, 212132, 251980, 265165, 311320, 424264, 503960, 530330, 1060660, 2121320, 2280419, 4560838, 9121676, 11402095, 18243352, 22804190, 45608380, 91216760]

約数ペア:

[(1, 91216760), (2, 45608380), (4, 22804190), (5, 18243352), (8, 11402095), (10, 9121676), (20, 4560838), (40, 2280419), (43, 2121320), (86, 1060660), (172, 530330), (181, 503960), (215, 424264), (293, 311320), (344, 265165), (362, 251980), (430, 212132), (586, 155660), (724, 125990), (860, 106066), (905, 100792), (1172, 77830), (1448, 62995), (1465, 62264), (1720, 53033), (1810, 50396), (2344, 38915), (2930, 31132), (3620, 25198), (5860, 15566), (7240, 12599), (7783, 11720)]