28748360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 69621120

約数和(自身を除く): 40872760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 536, 631, 670, 680, 1139, 1262, 1340, 2278, 2524, 2680, 3155, 4556, 5048, 5695, 6310, 9112, 10727, 11390, 12620, 21454, 22780, 25240, 42277, 42908, 45560, 53635, 84554, 85816, 107270, 169108, 211385, 214540, 338216, 422770, 429080, 718709, 845540, 1437418, 1691080, 2874836, 3593545, 5749672, 7187090, 14374180, 28748360]

約数ペア:

[(1, 28748360), (2, 14374180), (4, 7187090), (5, 5749672), (8, 3593545), (10, 2874836), (17, 1691080), (20, 1437418), (34, 845540), (40, 718709), (67, 429080), (68, 422770), (85, 338216), (134, 214540), (136, 211385), (170, 169108), (268, 107270), (335, 85816), (340, 84554), (536, 53635), (631, 45560), (670, 42908), (680, 42277), (1139, 25240), (1262, 22780), (1340, 21454), (2278, 12620), (2524, 11390), (2680, 10727), (3155, 9112), (4556, 6310), (5048, 5695)]