19777990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48239}}^1$

素因数の和:48287

約数の個数: 16

約数和(自身を含む): 36469440

約数和(自身を除く): 16691450

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 48239, 96478, 241195, 482390, 1977799, 3955598, 9888995, 19777990]

約数ペア:

[(1, 19777990), (2, 9888995), (5, 3955598), (10, 1977799), (41, 482390), (82, 241195), (205, 96478), (410, 48239)]