156572975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1667}}^1$

素因数の和:1724

約数の個数: 36

約数和(自身を含む): 222240984

約数和(自身を除く): 65668009

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 289, 325, 425, 1105, 1445, 1667, 3757, 5525, 7225, 8335, 18785, 21671, 28339, 41675, 93925, 108355, 141695, 368407, 481763, 541775, 708475, 1842035, 2408815, 6262919, 9210175, 12044075, 31314595, 156572975]

約数ペア:

[(1, 156572975), (5, 31314595), (13, 12044075), (17, 9210175), (25, 6262919), (65, 2408815), (85, 1842035), (221, 708475), (289, 541775), (325, 481763), (425, 368407), (1105, 141695), (1445, 108355), (1667, 93925), (3757, 41675), (5525, 28339), (7225, 21671), (8335, 18785)]