18445420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{367}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 26067860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 359, 367, 718, 734, 1436, 1468, 1795, 1835, 2513, 2569, 3590, 3670, 5026, 5138, 7180, 7340, 10052, 10276, 12565, 12845, 25130, 25690, 50260, 51380, 131753, 263506, 527012, 658765, 922271, 1317530, 1844542, 2635060, 3689084, 4611355, 9222710, 18445420]

約数ペア:

[(1, 18445420), (2, 9222710), (4, 4611355), (5, 3689084), (7, 2635060), (10, 1844542), (14, 1317530), (20, 922271), (28, 658765), (35, 527012), (70, 263506), (140, 131753), (359, 51380), (367, 50260), (718, 25690), (734, 25130), (1436, 12845), (1468, 12565), (1795, 10276), (1835, 10052), (2513, 7340), (2569, 7180), (3590, 5138), (3670, 5026)]