163627640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{997}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 403112160

約数和(自身を除く): 239484520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 373, 440, 746, 997, 1492, 1865, 1994, 2984, 3730, 3988, 4103, 4985, 7460, 7976, 8206, 9970, 10967, 14920, 16412, 19940, 20515, 21934, 32824, 39880, 41030, 43868, 54835, 82060, 87736, 109670, 164120, 219340, 371881, 438680, 743762, 1487524, 1859405, 2975048, 3718810, 4090691, 7437620, 8181382, 14875240, 16362764, 20453455, 32725528, 40906910, 81813820, 163627640]

約数ペア:

[(1, 163627640), (2, 81813820), (4, 40906910), (5, 32725528), (8, 20453455), (10, 16362764), (11, 14875240), (20, 8181382), (22, 7437620), (40, 4090691), (44, 3718810), (55, 2975048), (88, 1859405), (110, 1487524), (220, 743762), (373, 438680), (440, 371881), (746, 219340), (997, 164120), (1492, 109670), (1865, 87736), (1994, 82060), (2984, 54835), (3730, 43868), (3988, 41030), (4103, 39880), (4985, 32824), (7460, 21934), (7976, 20515), (8206, 19940), (9970, 16412), (10967, 14920)]