289800290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{42061}}^1$

素因数の和:42134

約数の個数: 32

約数和(自身を含む): 572379696

約数和(自身を除く): 282579406

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 42061, 84122, 210305, 420610, 546793, 1093586, 2229233, 2733965, 4458466, 5467930, 11146165, 22292330, 28980029, 57960058, 144900145, 289800290]

約数ペア:

[(1, 289800290), (2, 144900145), (5, 57960058), (10, 28980029), (13, 22292330), (26, 11146165), (53, 5467930), (65, 4458466), (106, 2733965), (130, 2229233), (265, 1093586), (530, 546793), (689, 420610), (1378, 210305), (3445, 84122), (6890, 42061)]