68815740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163847}}^1$

素因数の和:163866

約数の個数: 48

約数和(自身を含む): 220211712

約数和(自身を除く): 151395972

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, 163847, 327694, 491541, 655388, 819235, 983082, 1146929, 1638470, 1966164, 2293858, 2457705, 3276940, 3440787, 4587716, 4915410, 5734645, 6881574, 9830820, 11469290, 13763148, 17203935, 22938580, 34407870, 68815740]

約数ペア:

[(1, 68815740), (2, 34407870), (3, 22938580), (4, 17203935), (5, 13763148), (6, 11469290), (7, 9830820), (10, 6881574), (12, 5734645), (14, 4915410), (15, 4587716), (20, 3440787), (21, 3276940), (28, 2457705), (30, 2293858), (35, 1966164), (42, 1638470), (60, 1146929), (70, 983082), (84, 819235), (105, 655388), (140, 491541), (210, 327694), (420, 163847)]