72781775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 105850368

約数和(自身を除く): 33068593

約数列:

[1, 5, 11, 23, 25, 37, 55, 115, 185, 253, 275, 311, 407, 575, 851, 925, 1265, 1555, 2035, 3421, 4255, 6325, 7153, 7775, 9361, 10175, 11507, 17105, 21275, 35765, 46805, 57535, 78683, 85525, 126577, 178825, 234025, 264661, 287675, 393415, 632885, 1323305, 1967075, 2911271, 3164425, 6616525, 14556355, 72781775]

約数ペア:

[(1, 72781775), (5, 14556355), (11, 6616525), (23, 3164425), (25, 2911271), (37, 1967075), (55, 1323305), (115, 632885), (185, 393415), (253, 287675), (275, 264661), (311, 234025), (407, 178825), (575, 126577), (851, 85525), (925, 78683), (1265, 57535), (1555, 46805), (2035, 35765), (3421, 21275), (4255, 17105), (6325, 11507), (7153, 10175), (7775, 9361)]