20097740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4547}}^1$

素因数の和:4586

約数の個数: 48

約数和(自身を含む): 48136032

約数和(自身を除く): 28038292

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4547, 9094, 18188, 22735, 45470, 59111, 77299, 90940, 118222, 154598, 236444, 295555, 309196, 386495, 591110, 772990, 1004887, 1182220, 1545980, 2009774, 4019548, 5024435, 10048870, 20097740]

約数ペア:

[(1, 20097740), (2, 10048870), (4, 5024435), (5, 4019548), (10, 2009774), (13, 1545980), (17, 1182220), (20, 1004887), (26, 772990), (34, 591110), (52, 386495), (65, 309196), (68, 295555), (85, 236444), (130, 154598), (170, 118222), (221, 90940), (260, 77299), (340, 59111), (442, 45470), (884, 22735), (1105, 18188), (2210, 9094), (4420, 4547)]