12928016620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1\times {\mathrm{17749}}^1$

素因数の和:18298

約数の個数: 48

約数和(自身を含む): 27553680000

約数和(自身を除く): 14625663380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 461, 790, 922, 1580, 1844, 2305, 4610, 9220, 17749, 35498, 36419, 70996, 72838, 88745, 145676, 177490, 182095, 354980, 364190, 728380, 1402171, 2804342, 5608684, 7010855, 8182289, 14021710, 16364578, 28043420, 32729156, 40911445, 81822890, 163645780, 646400831, 1292801662, 2585603324, 3232004155, 6464008310, 12928016620]

約数ペア:

[(1, 12928016620), (2, 6464008310), (4, 3232004155), (5, 2585603324), (10, 1292801662), (20, 646400831), (79, 163645780), (158, 81822890), (316, 40911445), (395, 32729156), (461, 28043420), (790, 16364578), (922, 14021710), (1580, 8182289), (1844, 7010855), (2305, 5608684), (4610, 2804342), (9220, 1402171), (17749, 728380), (35498, 364190), (36419, 354980), (70996, 182095), (72838, 177490), (88745, 145676)]