138947180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 296728320

約数和(自身を除く): 157781140

約数列:

[1, 2, 4, 5, 10, 20, 139, 151, 278, 302, 331, 556, 604, 662, 695, 755, 1324, 1390, 1510, 1655, 2780, 3020, 3310, 6620, 20989, 41978, 46009, 49981, 83956, 92018, 99962, 104945, 184036, 199924, 209890, 230045, 249905, 419780, 460090, 499810, 920180, 999620, 6947359, 13894718, 27789436, 34736795, 69473590, 138947180]

約数ペア:

[(1, 138947180), (2, 69473590), (4, 34736795), (5, 27789436), (10, 13894718), (20, 6947359), (139, 999620), (151, 920180), (278, 499810), (302, 460090), (331, 419780), (556, 249905), (604, 230045), (662, 209890), (695, 199924), (755, 184036), (1324, 104945), (1390, 99962), (1510, 92018), (1655, 83956), (2780, 49981), (3020, 46009), (3310, 41978), (6620, 20989)]