201614920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387721}}^1$

素因数の和:387745

約数の個数: 32

約数和(自身を含む): 488529720

約数和(自身を除く): 286914800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387721, 775442, 1550884, 1938605, 3101768, 3877210, 5040373, 7754420, 10080746, 15508840, 20161492, 25201865, 40322984, 50403730, 100807460, 201614920]

約数ペア:

[(1, 201614920), (2, 100807460), (4, 50403730), (5, 40322984), (8, 25201865), (10, 20161492), (13, 15508840), (20, 10080746), (26, 7754420), (40, 5040373), (52, 3877210), (65, 3101768), (104, 1938605), (130, 1550884), (260, 775442), (520, 387721)]