9998120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{733}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 25367040

約数和(自身を除く): 15368920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 733, 1240, 1364, 1466, 1705, 2728, 2932, 3410, 3665, 5864, 6820, 7330, 8063, 13640, 14660, 16126, 22723, 29320, 32252, 40315, 45446, 64504, 80630, 90892, 113615, 161260, 181784, 227230, 249953, 322520, 454460, 499906, 908920, 999812, 1249765, 1999624, 2499530, 4999060, 9998120]

約数ペア:

[(1, 9998120), (2, 4999060), (4, 2499530), (5, 1999624), (8, 1249765), (10, 999812), (11, 908920), (20, 499906), (22, 454460), (31, 322520), (40, 249953), (44, 227230), (55, 181784), (62, 161260), (88, 113615), (110, 90892), (124, 80630), (155, 64504), (220, 45446), (248, 40315), (310, 32252), (341, 29320), (440, 22723), (620, 16126), (682, 14660), (733, 13640), (1240, 8063), (1364, 7330), (1466, 6820), (1705, 5864), (2728, 3665), (2932, 3410)]