99903880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{60917}}^1$

素因数の和:60969

約数の個数: 32

約数和(自身を含む): 230270040

約数和(自身を除く): 130366160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 60917, 121834, 243668, 304585, 487336, 609170, 1218340, 2436680, 2497597, 4995194, 9990388, 12487985, 19980776, 24975970, 49951940, 99903880]

約数ペア:

[(1, 99903880), (2, 49951940), (4, 24975970), (5, 19980776), (8, 12487985), (10, 9990388), (20, 4995194), (40, 2497597), (41, 2436680), (82, 1218340), (164, 609170), (205, 487336), (328, 304585), (410, 243668), (820, 121834), (1640, 60917)]