256484232

素因数分解:

$2^3\times 3^4\times {\mathrm{397}}^1\times {\mathrm{997}}^1$

素因数の和:1412

約数の個数: 80

約数和(自身を含む): 720925260

約数和(自身を除く): 464441028

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 397, 648, 794, 997, 1191, 1588, 1994, 2382, 2991, 3176, 3573, 3988, 4764, 5982, 7146, 7976, 8973, 9528, 10719, 11964, 14292, 17946, 21438, 23928, 26919, 28584, 32157, 35892, 42876, 53838, 64314, 71784, 80757, 85752, 107676, 128628, 161514, 215352, 257256, 323028, 395809, 646056, 791618, 1187427, 1583236, 2374854, 3166472, 3562281, 4749708, 7124562, 9499416, 10686843, 14249124, 21373686, 28498248, 32060529, 42747372, 64121058, 85494744, 128242116, 256484232]

約数ペア:

[(1, 256484232), (2, 128242116), (3, 85494744), (4, 64121058), (6, 42747372), (8, 32060529), (9, 28498248), (12, 21373686), (18, 14249124), (24, 10686843), (27, 9499416), (36, 7124562), (54, 4749708), (72, 3562281), (81, 3166472), (108, 2374854), (162, 1583236), (216, 1187427), (324, 791618), (397, 646056), (648, 395809), (794, 323028), (997, 257256), (1191, 215352), (1588, 161514), (1994, 128628), (2382, 107676), (2991, 85752), (3176, 80757), (3573, 71784), (3988, 64314), (4764, 53838), (5982, 42876), (7146, 35892), (7976, 32157), (8973, 28584), (9528, 26919), (10719, 23928), (11964, 21438), (14292, 17946)]