21142600

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1733}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 49991220

約数和(自身を除く): 28848620

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 1733, 2440, 3050, 3466, 6100, 6932, 8665, 12200, 13864, 17330, 34660, 43325, 69320, 86650, 105713, 173300, 211426, 346600, 422852, 528565, 845704, 1057130, 2114260, 2642825, 4228520, 5285650, 10571300, 21142600]

約数ペア:

[(1, 21142600), (2, 10571300), (4, 5285650), (5, 4228520), (8, 2642825), (10, 2114260), (20, 1057130), (25, 845704), (40, 528565), (50, 422852), (61, 346600), (100, 211426), (122, 173300), (200, 105713), (244, 86650), (305, 69320), (488, 43325), (610, 34660), (1220, 17330), (1525, 13864), (1733, 12200), (2440, 8665), (3050, 6932), (3466, 6100)]