664883180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{229}}^1\times {\mathrm{859}}^1$

素因数の和:1123

約数の個数: 72

約数和(自身を含む): 1520290800

約数和(自身を除く): 855407620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 229, 260, 338, 458, 676, 845, 859, 916, 1145, 1690, 1718, 2290, 2977, 3380, 3436, 4295, 4580, 5954, 8590, 11167, 11908, 14885, 17180, 22334, 29770, 38701, 44668, 55835, 59540, 77402, 111670, 145171, 154804, 193505, 196711, 223340, 290342, 387010, 393422, 580684, 725855, 774020, 786844, 983555, 1451710, 1967110, 2557243, 2903420, 3934220, 5114486, 10228972, 12786215, 25572430, 33244159, 51144860, 66488318, 132976636, 166220795, 332441590, 664883180]

約数ペア:

[(1, 664883180), (2, 332441590), (4, 166220795), (5, 132976636), (10, 66488318), (13, 51144860), (20, 33244159), (26, 25572430), (52, 12786215), (65, 10228972), (130, 5114486), (169, 3934220), (229, 2903420), (260, 2557243), (338, 1967110), (458, 1451710), (676, 983555), (845, 786844), (859, 774020), (916, 725855), (1145, 580684), (1690, 393422), (1718, 387010), (2290, 290342), (2977, 223340), (3380, 196711), (3436, 193505), (4295, 154804), (4580, 145171), (5954, 111670), (8590, 77402), (11167, 59540), (11908, 55835), (14885, 44668), (17180, 38701), (22334, 29770)]