28627840

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1091}}^1$

素因数の和:1151

約数の個数: 64

約数和(自身を含む): 70171920

約数和(自身を除く): 41544080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1091, 1312, 1640, 2182, 2624, 3280, 4364, 5248, 5455, 6560, 8728, 10910, 13120, 17456, 21820, 26240, 34912, 43640, 44731, 69824, 87280, 89462, 139648, 174560, 178924, 223655, 349120, 357848, 447310, 698240, 715696, 894620, 1431392, 1789240, 2862784, 3578480, 5725568, 7156960, 14313920, 28627840]

約数ペア:

[(1, 28627840), (2, 14313920), (4, 7156960), (5, 5725568), (8, 3578480), (10, 2862784), (16, 1789240), (20, 1431392), (32, 894620), (40, 715696), (41, 698240), (64, 447310), (80, 357848), (82, 349120), (128, 223655), (160, 178924), (164, 174560), (205, 139648), (320, 89462), (328, 87280), (410, 69824), (640, 44731), (656, 43640), (820, 34912), (1091, 26240), (1312, 21820), (1640, 17456), (2182, 13120), (2624, 10910), (3280, 8728), (4364, 6560), (5248, 5455)]