81914520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1669}}^1$

素因数の和:2092

約数の個数: 64

約数和(自身を含む): 246492000

約数和(自身を除く): 164577480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 409, 818, 1227, 1636, 1669, 2045, 2454, 3272, 3338, 4090, 4908, 5007, 6135, 6676, 8180, 8345, 9816, 10014, 12270, 13352, 16360, 16690, 20028, 24540, 25035, 33380, 40056, 49080, 50070, 66760, 100140, 200280, 682621, 1365242, 2047863, 2730484, 3413105, 4095726, 5460968, 6826210, 8191452, 10239315, 13652420, 16382904, 20478630, 27304840, 40957260, 81914520]

約数ペア:

[(1, 81914520), (2, 40957260), (3, 27304840), (4, 20478630), (5, 16382904), (6, 13652420), (8, 10239315), (10, 8191452), (12, 6826210), (15, 5460968), (20, 4095726), (24, 3413105), (30, 2730484), (40, 2047863), (60, 1365242), (120, 682621), (409, 200280), (818, 100140), (1227, 66760), (1636, 50070), (1669, 49080), (2045, 40056), (2454, 33380), (3272, 25035), (3338, 24540), (4090, 20028), (4908, 16690), (5007, 16360), (6135, 13352), (6676, 12270), (8180, 10014), (8345, 9816)]