11989980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1129}}^1$

素因数の和:1203

約数の個数: 72

約数和(自身を含む): 37018800

約数和(自身を除く): 25028820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1129, 1180, 1770, 2124, 2258, 2655, 3387, 3540, 4516, 5310, 5645, 6774, 10161, 10620, 11290, 13548, 16935, 20322, 22580, 33870, 40644, 50805, 66611, 67740, 101610, 133222, 199833, 203220, 266444, 333055, 399666, 599499, 666110, 799332, 999165, 1198998, 1332220, 1998330, 2397996, 2997495, 3996660, 5994990, 11989980]

約数ペア:

[(1, 11989980), (2, 5994990), (3, 3996660), (4, 2997495), (5, 2397996), (6, 1998330), (9, 1332220), (10, 1198998), (12, 999165), (15, 799332), (18, 666110), (20, 599499), (30, 399666), (36, 333055), (45, 266444), (59, 203220), (60, 199833), (90, 133222), (118, 101610), (177, 67740), (180, 66611), (236, 50805), (295, 40644), (354, 33870), (531, 22580), (590, 20322), (708, 16935), (885, 13548), (1062, 11290), (1129, 10620), (1180, 10161), (1770, 6774), (2124, 5645), (2258, 5310), (2655, 4516), (3387, 3540)]