208775420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78487}}^1$

素因数の和:78522

約数の個数: 48

約数和(自身を含む): 527439360

約数和(自身を除く): 318663940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 78487, 156974, 313948, 392435, 549409, 784870, 1098818, 1491253, 1569740, 2197636, 2747045, 2982506, 5494090, 5965012, 7456265, 10438771, 10988180, 14912530, 20877542, 29825060, 41755084, 52193855, 104387710, 208775420]

約数ペア:

[(1, 208775420), (2, 104387710), (4, 52193855), (5, 41755084), (7, 29825060), (10, 20877542), (14, 14912530), (19, 10988180), (20, 10438771), (28, 7456265), (35, 5965012), (38, 5494090), (70, 2982506), (76, 2747045), (95, 2197636), (133, 1569740), (140, 1491253), (190, 1098818), (266, 784870), (380, 549409), (532, 392435), (665, 313948), (1330, 156974), (2660, 78487)]