18254860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 23742452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1151, 1220, 1586, 2302, 3172, 3965, 4604, 5755, 7930, 11510, 14963, 15860, 23020, 29926, 59852, 70211, 74815, 140422, 149630, 280844, 299260, 351055, 702110, 912743, 1404220, 1825486, 3650972, 4563715, 9127430, 18254860]

約数ペア:

[(1, 18254860), (2, 9127430), (4, 4563715), (5, 3650972), (10, 1825486), (13, 1404220), (20, 912743), (26, 702110), (52, 351055), (61, 299260), (65, 280844), (122, 149630), (130, 140422), (244, 74815), (260, 70211), (305, 59852), (610, 29926), (793, 23020), (1151, 15860), (1220, 14963), (1586, 11510), (2302, 7930), (3172, 5755), (3965, 4604)]