18378040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14821}}^1$

素因数の和:14863

約数の個数: 32

約数和(自身を含む): 42687360

約数和(自身を除く): 24309320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 14821, 29642, 59284, 74105, 118568, 148210, 296420, 459451, 592840, 918902, 1837804, 2297255, 3675608, 4594510, 9189020, 18378040]

約数ペア:

[(1, 18378040), (2, 9189020), (4, 4594510), (5, 3675608), (8, 2297255), (10, 1837804), (20, 918902), (31, 592840), (40, 459451), (62, 296420), (124, 148210), (155, 118568), (248, 74105), (310, 59284), (620, 29642), (1240, 14821)]