278342740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1009}}^1\times {\mathrm{1061}}^1$

素因数の和:2092

約数の個数: 48

約数和(自身を含む): 630700560

約数和(自身を除く): 352357820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1009, 1061, 2018, 2122, 4036, 4244, 5045, 5305, 10090, 10610, 13117, 13793, 20180, 21220, 26234, 27586, 52468, 55172, 65585, 68965, 131170, 137930, 262340, 275860, 1070549, 2141098, 4282196, 5352745, 10705490, 13917137, 21410980, 27834274, 55668548, 69585685, 139171370, 278342740]

約数ペア:

[(1, 278342740), (2, 139171370), (4, 69585685), (5, 55668548), (10, 27834274), (13, 21410980), (20, 13917137), (26, 10705490), (52, 5352745), (65, 4282196), (130, 2141098), (260, 1070549), (1009, 275860), (1061, 262340), (2018, 137930), (2122, 131170), (4036, 68965), (4244, 65585), (5045, 55172), (5305, 52468), (10090, 27586), (10610, 26234), (13117, 21220), (13793, 20180)]