311130625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 423145800

約数和(自身を除く): 112015175

約数列:

[1, 5, 13, 25, 65, 125, 149, 257, 325, 625, 745, 1285, 1625, 1937, 3341, 3725, 6425, 8125, 9685, 16705, 18625, 32125, 38293, 48425, 83525, 93125, 160625, 191465, 242125, 417625, 497809, 957325, 1210625, 2088125, 2489045, 4786625, 12445225, 23933125, 62226125, 311130625]

約数ペア:

[(1, 311130625), (5, 62226125), (13, 23933125), (25, 12445225), (65, 4786625), (125, 2489045), (149, 2088125), (257, 1210625), (325, 957325), (625, 497809), (745, 417625), (1285, 242125), (1625, 191465), (1937, 160625), (3341, 93125), (3725, 83525), (6425, 48425), (8125, 38293), (9685, 32125), (16705, 18625)]