15218140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 37062144

約数和(自身を除く): 21844004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1531, 1988, 2485, 3062, 4970, 6124, 7655, 9940, 10717, 15310, 21434, 30620, 42868, 53585, 107170, 108701, 214340, 217402, 434804, 543505, 760907, 1087010, 1521814, 2174020, 3043628, 3804535, 7609070, 15218140]

約数ペア:

[(1, 15218140), (2, 7609070), (4, 3804535), (5, 3043628), (7, 2174020), (10, 1521814), (14, 1087010), (20, 760907), (28, 543505), (35, 434804), (70, 217402), (71, 214340), (140, 108701), (142, 107170), (284, 53585), (355, 42868), (497, 30620), (710, 21434), (994, 15310), (1420, 10717), (1531, 9940), (1988, 7655), (2485, 6124), (3062, 4970)]