28287870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72533}}^1$

素因数の和:72556

約数の個数: 32

約数和(自身を含む): 73114272

約数和(自身を除く): 44826402

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72533, 145066, 217599, 362665, 435198, 725330, 942929, 1087995, 1885858, 2175990, 2828787, 4714645, 5657574, 9429290, 14143935, 28287870]

約数ペア:

[(1, 28287870), (2, 14143935), (3, 9429290), (5, 5657574), (6, 4714645), (10, 2828787), (13, 2175990), (15, 1885858), (26, 1087995), (30, 942929), (39, 725330), (65, 435198), (78, 362665), (130, 217599), (195, 145066), (390, 72533)]