128332890

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{67901}}^1$

素因数の和:67924

約数の個数: 64

約数和(自身を含む): 391115520

約数和(自身を除く): 262782630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 67901, 135802, 203703, 339505, 407406, 475307, 611109, 679010, 950614, 1018515, 1222218, 1425921, 1833327, 2037030, 2376535, 2851842, 3055545, 3666654, 4277763, 4753070, 6111090, 7129605, 8555526, 9166635, 12833289, 14259210, 18333270, 21388815, 25666578, 42777630, 64166445, 128332890]

約数ペア:

[(1, 128332890), (2, 64166445), (3, 42777630), (5, 25666578), (6, 21388815), (7, 18333270), (9, 14259210), (10, 12833289), (14, 9166635), (15, 8555526), (18, 7129605), (21, 6111090), (27, 4753070), (30, 4277763), (35, 3666654), (42, 3055545), (45, 2851842), (54, 2376535), (63, 2037030), (70, 1833327), (90, 1425921), (105, 1222218), (126, 1018515), (135, 950614), (189, 679010), (210, 611109), (270, 475307), (315, 407406), (378, 339505), (630, 203703), (945, 135802), (1890, 67901)]