55280440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 129888000

約数和(自身を除く): 74607560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 409, 436, 545, 620, 818, 872, 1090, 1240, 1636, 2045, 2180, 3272, 3379, 4090, 4360, 6758, 8180, 12679, 13516, 16360, 16895, 25358, 27032, 33790, 44581, 50716, 63395, 67580, 89162, 101432, 126790, 135160, 178324, 222905, 253580, 356648, 445810, 507160, 891620, 1382011, 1783240, 2764022, 5528044, 6910055, 11056088, 13820110, 27640220, 55280440]

約数ペア:

[(1, 55280440), (2, 27640220), (4, 13820110), (5, 11056088), (8, 6910055), (10, 5528044), (20, 2764022), (31, 1783240), (40, 1382011), (62, 891620), (109, 507160), (124, 445810), (155, 356648), (218, 253580), (248, 222905), (310, 178324), (409, 135160), (436, 126790), (545, 101432), (620, 89162), (818, 67580), (872, 63395), (1090, 50716), (1240, 44581), (1636, 33790), (2045, 27032), (2180, 25358), (3272, 16895), (3379, 16360), (4090, 13516), (4360, 12679), (6758, 8180)]