1915400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 4555140

約数和(自身を除く): 2639740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 157, 200, 244, 305, 314, 488, 610, 628, 785, 1220, 1256, 1525, 1570, 2440, 3050, 3140, 3925, 6100, 6280, 7850, 9577, 12200, 15700, 19154, 31400, 38308, 47885, 76616, 95770, 191540, 239425, 383080, 478850, 957700, 1915400]

約数ペア:

[(1, 1915400), (2, 957700), (4, 478850), (5, 383080), (8, 239425), (10, 191540), (20, 95770), (25, 76616), (40, 47885), (50, 38308), (61, 31400), (100, 19154), (122, 15700), (157, 12200), (200, 9577), (244, 7850), (305, 6280), (314, 6100), (488, 3925), (610, 3140), (628, 3050), (785, 2440), (1220, 1570), (1256, 1525)]