18774980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2273}}^1$

素因数の和:2348

約数の個数: 48

約数和(自身を含む): 45843840

約数和(自身を除く): 27068860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 2273, 4130, 4546, 8260, 9092, 11365, 15911, 22730, 31822, 45460, 63644, 79555, 134107, 159110, 268214, 318220, 536428, 670535, 938749, 1341070, 1877498, 2682140, 3754996, 4693745, 9387490, 18774980]

約数ペア:

[(1, 18774980), (2, 9387490), (4, 4693745), (5, 3754996), (7, 2682140), (10, 1877498), (14, 1341070), (20, 938749), (28, 670535), (35, 536428), (59, 318220), (70, 268214), (118, 159110), (140, 134107), (236, 79555), (295, 63644), (413, 45460), (590, 31822), (826, 22730), (1180, 15911), (1652, 11365), (2065, 9092), (2273, 8260), (4130, 4546)]