13448420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 29568000

約数和(自身を除く): 16119580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 199, 218, 310, 398, 436, 545, 620, 796, 995, 1090, 1990, 2180, 3379, 3980, 6169, 6758, 12338, 13516, 16895, 21691, 24676, 30845, 33790, 43382, 61690, 67580, 86764, 108455, 123380, 216910, 433820, 672421, 1344842, 2689684, 3362105, 6724210, 13448420]

約数ペア:

[(1, 13448420), (2, 6724210), (4, 3362105), (5, 2689684), (10, 1344842), (20, 672421), (31, 433820), (62, 216910), (109, 123380), (124, 108455), (155, 86764), (199, 67580), (218, 61690), (310, 43382), (398, 33790), (436, 30845), (545, 24676), (620, 21691), (796, 16895), (995, 13516), (1090, 12338), (1990, 6758), (2180, 6169), (3379, 3980)]