16749880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 43453440

約数和(自身を除く): 26703560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 367, 652, 734, 815, 1141, 1304, 1468, 1630, 1835, 2282, 2569, 2936, 3260, 3670, 4564, 5138, 5705, 6520, 7340, 9128, 10276, 11410, 12845, 14680, 20552, 22820, 25690, 45640, 51380, 59821, 102760, 119642, 239284, 299105, 418747, 478568, 598210, 837494, 1196420, 1674988, 2093735, 2392840, 3349976, 4187470, 8374940, 16749880]

約数ペア:

[(1, 16749880), (2, 8374940), (4, 4187470), (5, 3349976), (7, 2392840), (8, 2093735), (10, 1674988), (14, 1196420), (20, 837494), (28, 598210), (35, 478568), (40, 418747), (56, 299105), (70, 239284), (140, 119642), (163, 102760), (280, 59821), (326, 51380), (367, 45640), (652, 25690), (734, 22820), (815, 20552), (1141, 14680), (1304, 12845), (1468, 11410), (1630, 10276), (1835, 9128), (2282, 7340), (2569, 6520), (2936, 5705), (3260, 5138), (3670, 4564)]