20142680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4889}}^1$

素因数の和:5003

約数の個数: 32

約数和(自身を含む): 45770400

約数和(自身を除く): 25627720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4889, 9778, 19556, 24445, 39112, 48890, 97780, 195560, 503567, 1007134, 2014268, 2517835, 4028536, 5035670, 10071340, 20142680]

約数ペア:

[(1, 20142680), (2, 10071340), (4, 5035670), (5, 4028536), (8, 2517835), (10, 2014268), (20, 1007134), (40, 503567), (103, 195560), (206, 97780), (412, 48890), (515, 39112), (824, 24445), (1030, 19556), (2060, 9778), (4120, 4889)]