717071780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{5701}}^1$

素因数の和:6060

約数の個数: 48

約数和(自身を含む): 1590173760

約数和(自身を除く): 873101980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 331, 380, 662, 1324, 1655, 3310, 5701, 6289, 6620, 11402, 12578, 22804, 25156, 28505, 31445, 57010, 62890, 108319, 114020, 125780, 216638, 433276, 541595, 1083190, 1887031, 2166380, 3774062, 7548124, 9435155, 18870310, 35853589, 37740620, 71707178, 143414356, 179267945, 358535890, 717071780]

約数ペア:

[(1, 717071780), (2, 358535890), (4, 179267945), (5, 143414356), (10, 71707178), (19, 37740620), (20, 35853589), (38, 18870310), (76, 9435155), (95, 7548124), (190, 3774062), (331, 2166380), (380, 1887031), (662, 1083190), (1324, 541595), (1655, 433276), (3310, 216638), (5701, 125780), (6289, 114020), (6620, 108319), (11402, 62890), (12578, 57010), (22804, 31445), (25156, 28505)]