1688895540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{20897}}^1$

素因数の和:21361

約数の個数: 72

約数和(自身を含む): 5134638600

約数和(自身を除く): 3445743060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 898, 1347, 1796, 2245, 2694, 4041, 4490, 5388, 6735, 8082, 8980, 13470, 16164, 20205, 20897, 26940, 40410, 41794, 62691, 80820, 83588, 104485, 125382, 188073, 208970, 250764, 313455, 376146, 417940, 626910, 752292, 940365, 1253820, 1880730, 3761460, 9382753, 18765506, 28148259, 37531012, 46913765, 56296518, 84444777, 93827530, 112593036, 140741295, 168889554, 187655060, 281482590, 337779108, 422223885, 562965180, 844447770, 1688895540]

約数ペア:

[(1, 1688895540), (2, 844447770), (3, 562965180), (4, 422223885), (5, 337779108), (6, 281482590), (9, 187655060), (10, 168889554), (12, 140741295), (15, 112593036), (18, 93827530), (20, 84444777), (30, 56296518), (36, 46913765), (45, 37531012), (60, 28148259), (90, 18765506), (180, 9382753), (449, 3761460), (898, 1880730), (1347, 1253820), (1796, 940365), (2245, 752292), (2694, 626910), (4041, 417940), (4490, 376146), (5388, 313455), (6735, 250764), (8082, 208970), (8980, 188073), (13470, 125382), (16164, 104485), (20205, 83588), (20897, 80820), (26940, 62691), (40410, 41794)]