2900690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 5742576

約数和(自身を除く): 2841886

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 421, 530, 689, 842, 1378, 2105, 3445, 4210, 5473, 6890, 10946, 22313, 27365, 44626, 54730, 111565, 223130, 290069, 580138, 1450345, 2900690]

約数ペア:

[(1, 2900690), (2, 1450345), (5, 580138), (10, 290069), (13, 223130), (26, 111565), (53, 54730), (65, 44626), (106, 27365), (130, 22313), (265, 10946), (421, 6890), (530, 5473), (689, 4210), (842, 3445), (1378, 2105)]