28074820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1163}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 63358848

約数和(自身を除く): 35284028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1163, 1207, 1420, 2326, 2414, 4652, 4828, 5815, 6035, 11630, 12070, 19771, 23260, 24140, 39542, 79084, 82573, 98855, 165146, 197710, 330292, 395420, 412865, 825730, 1403741, 1651460, 2807482, 5614964, 7018705, 14037410, 28074820]

約数ペア:

[(1, 28074820), (2, 14037410), (4, 7018705), (5, 5614964), (10, 2807482), (17, 1651460), (20, 1403741), (34, 825730), (68, 412865), (71, 395420), (85, 330292), (142, 197710), (170, 165146), (284, 98855), (340, 82573), (355, 79084), (710, 39542), (1163, 24140), (1207, 23260), (1420, 19771), (2326, 12070), (2414, 11630), (4652, 6035), (4828, 5815)]