68307660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19973}}^1$

素因数の和:20007

約数の個数: 72

約数和(自身を含む): 218116080

約数和(自身を除く): 149808420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 19973, 39946, 59919, 79892, 99865, 119838, 179757, 199730, 239676, 299595, 359514, 379487, 399460, 599190, 719028, 758974, 898785, 1138461, 1198380, 1517948, 1797570, 1897435, 2276922, 3415383, 3595140, 3794870, 4553844, 5692305, 6830766, 7589740, 11384610, 13661532, 17076915, 22769220, 34153830, 68307660]

約数ペア:

[(1, 68307660), (2, 34153830), (3, 22769220), (4, 17076915), (5, 13661532), (6, 11384610), (9, 7589740), (10, 6830766), (12, 5692305), (15, 4553844), (18, 3794870), (19, 3595140), (20, 3415383), (30, 2276922), (36, 1897435), (38, 1797570), (45, 1517948), (57, 1198380), (60, 1138461), (76, 898785), (90, 758974), (95, 719028), (114, 599190), (171, 399460), (180, 379487), (190, 359514), (228, 299595), (285, 239676), (342, 199730), (380, 179757), (570, 119838), (684, 99865), (855, 79892), (1140, 59919), (1710, 39946), (3420, 19973)]