1890085880

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1\times {\mathrm{2203}}^1$

素因数の和:2544

約数の個数: 64

約数和(自身を含む): 4320280800

約数和(自身を除く): 2430194920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 241, 356, 445, 482, 712, 890, 964, 1205, 1780, 1928, 2203, 2410, 3560, 4406, 4820, 8812, 9640, 11015, 17624, 21449, 22030, 42898, 44060, 85796, 88120, 107245, 171592, 196067, 214490, 392134, 428980, 530923, 784268, 857960, 980335, 1061846, 1568536, 1960670, 2123692, 2654615, 3921340, 4247384, 5309230, 7842680, 10618460, 21236920, 47252147, 94504294, 189008588, 236260735, 378017176, 472521470, 945042940, 1890085880]

約数ペア:

[(1, 1890085880), (2, 945042940), (4, 472521470), (5, 378017176), (8, 236260735), (10, 189008588), (20, 94504294), (40, 47252147), (89, 21236920), (178, 10618460), (241, 7842680), (356, 5309230), (445, 4247384), (482, 3921340), (712, 2654615), (890, 2123692), (964, 1960670), (1205, 1568536), (1780, 1061846), (1928, 980335), (2203, 857960), (2410, 784268), (3560, 530923), (4406, 428980), (4820, 392134), (8812, 214490), (9640, 196067), (11015, 171592), (17624, 107245), (21449, 88120), (22030, 85796), (42898, 44060)]