315315780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{404251}}^1$

素因数の和:404276

約数の個数: 48

約数和(自身を含む): 950800704

約数和(自身を除く): 635484924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 404251, 808502, 1212753, 1617004, 2021255, 2425506, 4042510, 4851012, 5255263, 6063765, 8085020, 10510526, 12127530, 15765789, 21021052, 24255060, 26276315, 31531578, 52552630, 63063156, 78828945, 105105260, 157657890, 315315780]

約数ペア:

[(1, 315315780), (2, 157657890), (3, 105105260), (4, 78828945), (5, 63063156), (6, 52552630), (10, 31531578), (12, 26276315), (13, 24255060), (15, 21021052), (20, 15765789), (26, 12127530), (30, 10510526), (39, 8085020), (52, 6063765), (60, 5255263), (65, 4851012), (78, 4042510), (130, 2425506), (156, 2021255), (195, 1617004), (260, 1212753), (390, 808502), (780, 404251)]