145756420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{235091}}^1$

素因数の和:235131

約数の個数: 24

約数和(自身を含む): 315963648

約数和(自身を除く): 170207228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 235091, 470182, 940364, 1175455, 2350910, 4701820, 7287821, 14575642, 29151284, 36439105, 72878210, 145756420]

約数ペア:

[(1, 145756420), (2, 72878210), (4, 36439105), (5, 29151284), (10, 14575642), (20, 7287821), (31, 4701820), (62, 2350910), (124, 1175455), (155, 940364), (310, 470182), (620, 235091)]