28290392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 61152000

約数和(自身を除く): 32861608

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 103, 104, 139, 152, 206, 247, 278, 412, 494, 556, 824, 988, 1112, 1339, 1807, 1957, 1976, 2641, 2678, 3614, 3914, 5282, 5356, 7228, 7828, 10564, 10712, 14317, 14456, 15656, 21128, 25441, 28634, 34333, 50882, 57268, 68666, 101764, 114536, 137332, 186121, 203528, 272023, 274664, 372242, 544046, 744484, 1088092, 1488968, 2176184, 3536299, 7072598, 14145196, 28290392]

約数ペア:

[(1, 28290392), (2, 14145196), (4, 7072598), (8, 3536299), (13, 2176184), (19, 1488968), (26, 1088092), (38, 744484), (52, 544046), (76, 372242), (103, 274664), (104, 272023), (139, 203528), (152, 186121), (206, 137332), (247, 114536), (278, 101764), (412, 68666), (494, 57268), (556, 50882), (824, 34333), (988, 28634), (1112, 25441), (1339, 21128), (1807, 15656), (1957, 14456), (1976, 14317), (2641, 10712), (2678, 10564), (3614, 7828), (3914, 7228), (5282, 5356)]