51684780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{123059}}^1$

素因数の和:123078

約数の個数: 48

約数和(自身を含む): 165392640

約数和(自身を除く): 113707860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 123059, 246118, 369177, 492236, 615295, 738354, 861413, 1230590, 1476708, 1722826, 1845885, 2461180, 2584239, 3445652, 3691770, 4307065, 5168478, 7383540, 8614130, 10336956, 12921195, 17228260, 25842390, 51684780]

約数ペア:

[(1, 51684780), (2, 25842390), (3, 17228260), (4, 12921195), (5, 10336956), (6, 8614130), (7, 7383540), (10, 5168478), (12, 4307065), (14, 3691770), (15, 3445652), (20, 2584239), (21, 2461180), (28, 1845885), (30, 1722826), (35, 1476708), (42, 1230590), (60, 861413), (70, 738354), (84, 615295), (105, 492236), (140, 369177), (210, 246118), (420, 123059)]