71699985

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{3613}}^1$

素因数の和:3644

約数の個数: 60

約数和(自身を含む): 149554548

約数和(自身を除く): 77854563

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 2205, 2835, 3613, 3969, 6615, 10839, 18065, 19845, 25291, 32517, 54195, 75873, 97551, 126455, 162585, 177037, 227619, 292653, 379365, 487755, 531111, 682857, 885185, 1138095, 1463265, 1593333, 2048571, 2655555, 3414285, 4779999, 7966665, 10242855, 14339997, 23899995, 71699985]

約数ペア:

[(1, 71699985), (3, 23899995), (5, 14339997), (7, 10242855), (9, 7966665), (15, 4779999), (21, 3414285), (27, 2655555), (35, 2048571), (45, 1593333), (49, 1463265), (63, 1138095), (81, 885185), (105, 682857), (135, 531111), (147, 487755), (189, 379365), (245, 292653), (315, 227619), (405, 177037), (441, 162585), (567, 126455), (735, 97551), (945, 75873), (1323, 54195), (2205, 32517), (2835, 25291), (3613, 19845), (3969, 18065), (6615, 10839)]