78891720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{657431}}^1$

素因数の和:657445

約数の個数: 32

約数和(自身を含む): 236675520

約数和(自身を除く): 157783800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 657431, 1314862, 1972293, 2629724, 3287155, 3944586, 5259448, 6574310, 7889172, 9861465, 13148620, 15778344, 19722930, 26297240, 39445860, 78891720]

約数ペア:

[(1, 78891720), (2, 39445860), (3, 26297240), (4, 19722930), (5, 15778344), (6, 13148620), (8, 9861465), (10, 7889172), (12, 6574310), (15, 5259448), (20, 3944586), (24, 3287155), (30, 2629724), (40, 1972293), (60, 1314862), (120, 657431)]