20380542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 50695680

約数和(自身を除く): 30315138

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 163, 182, 229, 273, 326, 458, 489, 546, 687, 978, 1141, 1374, 1603, 2119, 2282, 2977, 3206, 3423, 4238, 4809, 5954, 6357, 6846, 8931, 9618, 12714, 14833, 17862, 20839, 29666, 37327, 41678, 44499, 62517, 74654, 88998, 111981, 125034, 223962, 261289, 485251, 522578, 783867, 970502, 1455753, 1567734, 2911506, 3396757, 6793514, 10190271, 20380542]

約数ペア:

[(1, 20380542), (2, 10190271), (3, 6793514), (6, 3396757), (7, 2911506), (13, 1567734), (14, 1455753), (21, 970502), (26, 783867), (39, 522578), (42, 485251), (78, 261289), (91, 223962), (163, 125034), (182, 111981), (229, 88998), (273, 74654), (326, 62517), (458, 44499), (489, 41678), (546, 37327), (687, 29666), (978, 20839), (1141, 17862), (1374, 14833), (1603, 12714), (2119, 9618), (2282, 8931), (2977, 6846), (3206, 6357), (3423, 5954), (4238, 4809)]