28996400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1110

約数の個数: 60

約数和(自身を含む): 70714224

約数和(自身を除く): 41717824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 710, 1021, 1136, 1420, 1775, 2042, 2840, 3550, 4084, 5105, 5680, 7100, 8168, 10210, 14200, 16336, 20420, 25525, 28400, 40840, 51050, 72491, 81680, 102100, 144982, 204200, 289964, 362455, 408400, 579928, 724910, 1159856, 1449820, 1812275, 2899640, 3624550, 5799280, 7249100, 14498200, 28996400]

約数ペア:

[(1, 28996400), (2, 14498200), (4, 7249100), (5, 5799280), (8, 3624550), (10, 2899640), (16, 1812275), (20, 1449820), (25, 1159856), (40, 724910), (50, 579928), (71, 408400), (80, 362455), (100, 289964), (142, 204200), (200, 144982), (284, 102100), (355, 81680), (400, 72491), (568, 51050), (710, 40840), (1021, 28400), (1136, 25525), (1420, 20420), (1775, 16336), (2042, 14200), (2840, 10210), (3550, 8168), (4084, 7100), (5105, 5680)]