90642940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{50923}}^1$

素因数の和:51021

約数の個数: 24

約数和(自身を含む): 192492720

約数和(自身を除く): 101849780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 50923, 101846, 203692, 254615, 509230, 1018460, 4532147, 9064294, 18128588, 22660735, 45321470, 90642940]

約数ペア:

[(1, 90642940), (2, 45321470), (4, 22660735), (5, 18128588), (10, 9064294), (20, 4532147), (89, 1018460), (178, 509230), (356, 254615), (445, 203692), (890, 101846), (1780, 50923)]