128818340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{601}}^1\times {\mathrm{1531}}^1$

素因数の和:2148

約数の個数: 48

約数和(自身を含む): 309880704

約数和(自身を除く): 181062364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 601, 1202, 1531, 2404, 3005, 3062, 4207, 6010, 6124, 7655, 8414, 10717, 12020, 15310, 16828, 21035, 21434, 30620, 42070, 42868, 53585, 84140, 107170, 214340, 920131, 1840262, 3680524, 4600655, 6440917, 9201310, 12881834, 18402620, 25763668, 32204585, 64409170, 128818340]

約数ペア:

[(1, 128818340), (2, 64409170), (4, 32204585), (5, 25763668), (7, 18402620), (10, 12881834), (14, 9201310), (20, 6440917), (28, 4600655), (35, 3680524), (70, 1840262), (140, 920131), (601, 214340), (1202, 107170), (1531, 84140), (2404, 53585), (3005, 42868), (3062, 42070), (4207, 30620), (6010, 21434), (6124, 21035), (7655, 16828), (8414, 15310), (10717, 12020)]