2019541640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{827681}}^1$

素因数の和:827753

約数の個数: 32

約数和(自身を含む): 4618465560

約数和(自身を除く): 2598923920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 827681, 1655362, 3310724, 4138405, 6621448, 8276810, 16553620, 33107240, 50488541, 100977082, 201954164, 252442705, 403908328, 504885410, 1009770820, 2019541640]

約数ペア:

[(1, 2019541640), (2, 1009770820), (4, 504885410), (5, 403908328), (8, 252442705), (10, 201954164), (20, 100977082), (40, 50488541), (61, 33107240), (122, 16553620), (244, 8276810), (305, 6621448), (488, 4138405), (610, 3310724), (1220, 1655362), (2440, 827681)]