81701140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3209}}^1$

素因数の和:3304

約数の個数: 48

約数和(自身を含む): 183355200

約数和(自身を除く): 101654060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2546, 3209, 5092, 6365, 6418, 12730, 12836, 16045, 25460, 32090, 60971, 64180, 121942, 215003, 243884, 304855, 430006, 609710, 860012, 1075015, 1219420, 2150030, 4085057, 4300060, 8170114, 16340228, 20425285, 40850570, 81701140]

約数ペア:

[(1, 81701140), (2, 40850570), (4, 20425285), (5, 16340228), (10, 8170114), (19, 4300060), (20, 4085057), (38, 2150030), (67, 1219420), (76, 1075015), (95, 860012), (134, 609710), (190, 430006), (268, 304855), (335, 243884), (380, 215003), (670, 121942), (1273, 64180), (1340, 60971), (2546, 32090), (3209, 25460), (5092, 16045), (6365, 12836), (6418, 12730)]