309757890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25621}}^1$

素因数の和:25675

約数の個数: 64

約数和(自身を含む): 826463232

約数和(自身を除く): 516705342

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 2015, 2418, 4030, 6045, 12090, 25621, 51242, 76863, 128105, 153726, 256210, 333073, 384315, 666146, 768630, 794251, 999219, 1588502, 1665365, 1998438, 2382753, 3330730, 3971255, 4765506, 4996095, 7942510, 9992190, 10325263, 11913765, 20650526, 23827530, 30975789, 51626315, 61951578, 103252630, 154878945, 309757890]

約数ペア:

[(1, 309757890), (2, 154878945), (3, 103252630), (5, 61951578), (6, 51626315), (10, 30975789), (13, 23827530), (15, 20650526), (26, 11913765), (30, 10325263), (31, 9992190), (39, 7942510), (62, 4996095), (65, 4765506), (78, 3971255), (93, 3330730), (130, 2382753), (155, 1998438), (186, 1665365), (195, 1588502), (310, 999219), (390, 794251), (403, 768630), (465, 666146), (806, 384315), (930, 333073), (1209, 256210), (2015, 153726), (2418, 128105), (4030, 76863), (6045, 51242), (12090, 25621)]