19154000

素因数分解:

$2^4\times 5^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 80

約数和(自身を含む): 47373456

約数和(自身を除く): 28219456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 157, 200, 244, 250, 305, 314, 400, 488, 500, 610, 628, 785, 976, 1000, 1220, 1256, 1525, 1570, 2000, 2440, 2512, 3050, 3140, 3925, 4880, 6100, 6280, 7625, 7850, 9577, 12200, 12560, 15250, 15700, 19154, 19625, 24400, 30500, 31400, 38308, 39250, 47885, 61000, 62800, 76616, 78500, 95770, 122000, 153232, 157000, 191540, 239425, 314000, 383080, 478850, 766160, 957700, 1197125, 1915400, 2394250, 3830800, 4788500, 9577000, 19154000]

約数ペア:

[(1, 19154000), (2, 9577000), (4, 4788500), (5, 3830800), (8, 2394250), (10, 1915400), (16, 1197125), (20, 957700), (25, 766160), (40, 478850), (50, 383080), (61, 314000), (80, 239425), (100, 191540), (122, 157000), (125, 153232), (157, 122000), (200, 95770), (244, 78500), (250, 76616), (305, 62800), (314, 61000), (400, 47885), (488, 39250), (500, 38308), (610, 31400), (628, 30500), (785, 24400), (976, 19625), (1000, 19154), (1220, 15700), (1256, 15250), (1525, 12560), (1570, 12200), (2000, 9577), (2440, 7850), (2512, 7625), (3050, 6280), (3140, 6100), (3925, 4880)]