19600880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 50246784

約数和(自身を除く): 30645904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 401, 470, 520, 611, 752, 802, 940, 1040, 1222, 1604, 1880, 2005, 2444, 3055, 3208, 3760, 4010, 4888, 5213, 6110, 6416, 8020, 9776, 10426, 12220, 16040, 18847, 20852, 24440, 26065, 32080, 37694, 41704, 48880, 52130, 75388, 83408, 94235, 104260, 150776, 188470, 208520, 245011, 301552, 376940, 417040, 490022, 753880, 980044, 1225055, 1507760, 1960088, 2450110, 3920176, 4900220, 9800440, 19600880]

約数ペア:

[(1, 19600880), (2, 9800440), (4, 4900220), (5, 3920176), (8, 2450110), (10, 1960088), (13, 1507760), (16, 1225055), (20, 980044), (26, 753880), (40, 490022), (47, 417040), (52, 376940), (65, 301552), (80, 245011), (94, 208520), (104, 188470), (130, 150776), (188, 104260), (208, 94235), (235, 83408), (260, 75388), (376, 52130), (401, 48880), (470, 41704), (520, 37694), (611, 32080), (752, 26065), (802, 24440), (940, 20852), (1040, 18847), (1222, 16040), (1604, 12220), (1880, 10426), (2005, 9776), (2444, 8020), (3055, 6416), (3208, 6110), (3760, 5213), (4010, 4888)]