1978889420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1933}}^1\times {\mathrm{3011}}^1$

素因数の和:4970

約数の個数: 48

約数和(自身を含む): 4403857248

約数和(自身を除く): 2424967828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1933, 3011, 3866, 6022, 7732, 9665, 12044, 15055, 19330, 30110, 32861, 38660, 51187, 60220, 65722, 102374, 131444, 164305, 204748, 255935, 328610, 511870, 657220, 1023740, 5820263, 11640526, 23281052, 29101315, 58202630, 98944471, 116405260, 197888942, 395777884, 494722355, 989444710, 1978889420]

約数ペア:

[(1, 1978889420), (2, 989444710), (4, 494722355), (5, 395777884), (10, 197888942), (17, 116405260), (20, 98944471), (34, 58202630), (68, 29101315), (85, 23281052), (170, 11640526), (340, 5820263), (1933, 1023740), (3011, 657220), (3866, 511870), (6022, 328610), (7732, 255935), (9665, 204748), (12044, 164305), (15055, 131444), (19330, 102374), (30110, 65722), (32861, 60220), (38660, 51187)]