42490160

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8707}}^1$

素因数の和:8781

約数の個数: 40

約数和(自身を含む): 100420656

約数和(自身を除く): 57930496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 8707, 17414, 34828, 43535, 69656, 87070, 139312, 174140, 348280, 531127, 696560, 1062254, 2124508, 2655635, 4249016, 5311270, 8498032, 10622540, 21245080, 42490160]

約数ペア:

[(1, 42490160), (2, 21245080), (4, 10622540), (5, 8498032), (8, 5311270), (10, 4249016), (16, 2655635), (20, 2124508), (40, 1062254), (61, 696560), (80, 531127), (122, 348280), (244, 174140), (305, 139312), (488, 87070), (610, 69656), (976, 43535), (1220, 34828), (2440, 17414), (4880, 8707)]