18848720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21419}}^1$

素因数の和:21443

約数の個数: 40

約数和(自身を含む): 47809440

約数和(自身を除く): 28960720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21419, 42838, 85676, 107095, 171352, 214190, 235609, 342704, 428380, 471218, 856760, 942436, 1178045, 1713520, 1884872, 2356090, 3769744, 4712180, 9424360, 18848720]

約数ペア:

[(1, 18848720), (2, 9424360), (4, 4712180), (5, 3769744), (8, 2356090), (10, 1884872), (11, 1713520), (16, 1178045), (20, 942436), (22, 856760), (40, 471218), (44, 428380), (55, 342704), (80, 235609), (88, 214190), (110, 171352), (176, 107095), (220, 85676), (440, 42838), (880, 21419)]