129723560

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{14543}}^1$

素因数の和:14777

約数の個数: 32

約数和(自身を含む): 293207040

約数和(自身を除く): 163483480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 14543, 29086, 58172, 72715, 116344, 145430, 290860, 581720, 3243089, 6486178, 12972356, 16215445, 25944712, 32430890, 64861780, 129723560]

約数ペア:

[(1, 129723560), (2, 64861780), (4, 32430890), (5, 25944712), (8, 16215445), (10, 12972356), (20, 6486178), (40, 3243089), (223, 581720), (446, 290860), (892, 145430), (1115, 116344), (1784, 72715), (2230, 58172), (4460, 29086), (8920, 14543)]