71719940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2971}}^1$

素因数の和:3068

約数の個数: 48

約数和(自身を含む): 161771904

約数和(自身を除く): 90051964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1420, 2414, 2971, 4828, 5942, 6035, 11884, 12070, 14855, 24140, 29710, 50507, 59420, 101014, 202028, 210941, 252535, 421882, 505070, 843764, 1010140, 1054705, 2109410, 3585997, 4218820, 7171994, 14343988, 17929985, 35859970, 71719940]

約数ペア:

[(1, 71719940), (2, 35859970), (4, 17929985), (5, 14343988), (10, 7171994), (17, 4218820), (20, 3585997), (34, 2109410), (68, 1054705), (71, 1010140), (85, 843764), (142, 505070), (170, 421882), (284, 252535), (340, 210941), (355, 202028), (710, 101014), (1207, 59420), (1420, 50507), (2414, 29710), (2971, 24140), (4828, 14855), (5942, 12070), (6035, 11884)]