28518420

素因数分解:

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

素因数の和:67920

約数の個数: 48

約数和(自身を含む): 91260288

約数和(自身を除く): 62741868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67901, 135802, 203703, 271604, 339505, 407406, 475307, 679010, 814812, 950614, 1018515, 1358020, 1425921, 1901228, 2037030, 2376535, 2851842, 4074060, 4753070, 5703684, 7129605, 9506140, 14259210, 28518420]

約数ペア:

[(1, 28518420), (2, 14259210), (3, 9506140), (4, 7129605), (5, 5703684), (6, 4753070), (7, 4074060), (10, 2851842), (12, 2376535), (14, 2037030), (15, 1901228), (20, 1425921), (21, 1358020), (28, 1018515), (30, 950614), (35, 814812), (42, 679010), (60, 475307), (70, 407406), (84, 339505), (105, 271604), (140, 203703), (210, 135802), (420, 67901)]