310972740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{398683}}^1$

素因数の和:398708

約数の個数: 48

約数和(自身を含む): 937704768

約数和(自身を除く): 626732028

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, 398683, 797366, 1196049, 1594732, 1993415, 2392098, 3986830, 4784196, 5182879, 5980245, 7973660, 10365758, 11960490, 15548637, 20731516, 23920980, 25914395, 31097274, 51828790, 62194548, 77743185, 103657580, 155486370, 310972740]

約数ペア:

[(1, 310972740), (2, 155486370), (3, 103657580), (4, 77743185), (5, 62194548), (6, 51828790), (10, 31097274), (12, 25914395), (13, 23920980), (15, 20731516), (20, 15548637), (26, 11960490), (30, 10365758), (39, 7973660), (52, 5980245), (60, 5182879), (65, 4784196), (78, 3986830), (130, 2392098), (156, 1993415), (195, 1594732), (260, 1196049), (390, 797366), (780, 398683)]