19898520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2099}}^1$

素因数の和:2192

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 40581480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2099, 2370, 3160, 4198, 4740, 6297, 8396, 9480, 10495, 12594, 16792, 20990, 25188, 31485, 41980, 50376, 62970, 83960, 125940, 165821, 251880, 331642, 497463, 663284, 829105, 994926, 1326568, 1658210, 1989852, 2487315, 3316420, 3979704, 4974630, 6632840, 9949260, 19898520]

約数ペア:

[(1, 19898520), (2, 9949260), (3, 6632840), (4, 4974630), (5, 3979704), (6, 3316420), (8, 2487315), (10, 1989852), (12, 1658210), (15, 1326568), (20, 994926), (24, 829105), (30, 663284), (40, 497463), (60, 331642), (79, 251880), (120, 165821), (158, 125940), (237, 83960), (316, 62970), (395, 50376), (474, 41980), (632, 31485), (790, 25188), (948, 20990), (1185, 16792), (1580, 12594), (1896, 10495), (2099, 9480), (2370, 8396), (3160, 6297), (4198, 4740)]