161781310

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{9907}}^1$

素因数の和:10008

約数の個数: 32

約数和(自身を含む): 308178432

約数和(自身を除く): 146397122

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1633, 3266, 8165, 9907, 16330, 19814, 49535, 99070, 227861, 455722, 703397, 1139305, 1406794, 2278610, 3516985, 7033970, 16178131, 32356262, 80890655, 161781310]

約数ペア:

[(1, 161781310), (2, 80890655), (5, 32356262), (10, 16178131), (23, 7033970), (46, 3516985), (71, 2278610), (115, 1406794), (142, 1139305), (230, 703397), (355, 455722), (710, 227861), (1633, 99070), (3266, 49535), (8165, 19814), (9907, 16330)]