90494920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{20021}}^1$

素因数の和:20145

約数の個数: 32

約数和(自身を含む): 205425720

約数和(自身を除く): 114930800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 20021, 40042, 80084, 100105, 160168, 200210, 400420, 800840, 2262373, 4524746, 9049492, 11311865, 18098984, 22623730, 45247460, 90494920]

約数ペア:

[(1, 90494920), (2, 45247460), (4, 22623730), (5, 18098984), (8, 11311865), (10, 9049492), (20, 4524746), (40, 2262373), (113, 800840), (226, 400420), (452, 200210), (565, 160168), (904, 100105), (1130, 80084), (2260, 40042), (4520, 20021)]