128404380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164621}}^1$

素因数の和:164646

約数の個数: 48

約数和(自身を含む): 387190944

約数和(自身を除く): 258786564

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, 164621, 329242, 493863, 658484, 823105, 987726, 1646210, 1975452, 2140073, 2469315, 3292420, 4280146, 4938630, 6420219, 8560292, 9877260, 10700365, 12840438, 21400730, 25680876, 32101095, 42801460, 64202190, 128404380]

約数ペア:

[(1, 128404380), (2, 64202190), (3, 42801460), (4, 32101095), (5, 25680876), (6, 21400730), (10, 12840438), (12, 10700365), (13, 9877260), (15, 8560292), (20, 6420219), (26, 4938630), (30, 4280146), (39, 3292420), (52, 2469315), (60, 2140073), (65, 1975452), (78, 1646210), (130, 987726), (156, 823105), (195, 658484), (260, 493863), (390, 329242), (780, 164621)]