19209080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 28418920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 293, 298, 440, 586, 596, 745, 1172, 1192, 1465, 1490, 1639, 2344, 2930, 2980, 3223, 3278, 5860, 5960, 6446, 6556, 8195, 11720, 12892, 13112, 16115, 16390, 25784, 32230, 32780, 43657, 64460, 65560, 87314, 128920, 174628, 218285, 349256, 436570, 480227, 873140, 960454, 1746280, 1920908, 2401135, 3841816, 4802270, 9604540, 19209080]

約数ペア:

[(1, 19209080), (2, 9604540), (4, 4802270), (5, 3841816), (8, 2401135), (10, 1920908), (11, 1746280), (20, 960454), (22, 873140), (40, 480227), (44, 436570), (55, 349256), (88, 218285), (110, 174628), (149, 128920), (220, 87314), (293, 65560), (298, 64460), (440, 43657), (586, 32780), (596, 32230), (745, 25784), (1172, 16390), (1192, 16115), (1465, 13112), (1490, 12892), (1639, 11720), (2344, 8195), (2930, 6556), (2980, 6446), (3223, 5960), (3278, 5860)]