31202120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25163}}^1$

素因数の和:25205

約数の個数: 32

約数和(自身を含む): 72472320

約数和(自身を除く): 41270200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25163, 50326, 100652, 125815, 201304, 251630, 503260, 780053, 1006520, 1560106, 3120212, 3900265, 6240424, 7800530, 15601060, 31202120]

約数ペア:

[(1, 31202120), (2, 15601060), (4, 7800530), (5, 6240424), (8, 3900265), (10, 3120212), (20, 1560106), (31, 1006520), (40, 780053), (62, 503260), (124, 251630), (155, 201304), (248, 125815), (310, 100652), (620, 50326), (1240, 25163)]