122400640

素因数分解:

$2^7\times 5^1\times {\mathrm{191251}}^1$

素因数の和:191270

約数の個数: 32

約数和(自身を含む): 292615560

約数和(自身を除く): 170214920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 191251, 382502, 765004, 956255, 1530008, 1912510, 3060016, 3825020, 6120032, 7650040, 12240064, 15300080, 24480128, 30600160, 61200320, 122400640]

約数ペア:

[(1, 122400640), (2, 61200320), (4, 30600160), (5, 24480128), (8, 15300080), (10, 12240064), (16, 7650040), (20, 6120032), (32, 3825020), (40, 3060016), (64, 1912510), (80, 1530008), (128, 956255), (160, 765004), (320, 382502), (640, 191251)]