638045942390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{64514251}}^1$

素因数の和:64514324

約数の個数: 32

約数和(自身を含む): 1226286902016

約数和(自身を除く): 588240959626

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 4945, 9890, 64514251, 129028502, 322571255, 645142510, 1483827773, 2774112793, 2967655546, 5548225586, 7419138865, 13870563965, 14838277730, 27741127930, 63804594239, 127609188478, 319022971195, 638045942390]

約数ペア:

[(1, 638045942390), (2, 319022971195), (5, 127609188478), (10, 63804594239), (23, 27741127930), (43, 14838277730), (46, 13870563965), (86, 7419138865), (115, 5548225586), (215, 2967655546), (230, 2774112793), (430, 1483827773), (989, 645142510), (1978, 322571255), (4945, 129028502), (9890, 64514251)]