20164425

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 35235840

約数和(自身を除く): 15071415

約数列:

[1, 3, 5, 15, 25, 29, 73, 75, 87, 127, 145, 219, 365, 381, 435, 635, 725, 1095, 1825, 1905, 2117, 2175, 3175, 3683, 5475, 6351, 9271, 9525, 10585, 11049, 18415, 27813, 31755, 46355, 52925, 55245, 92075, 139065, 158775, 231775, 268859, 276225, 695325, 806577, 1344295, 4032885, 6721475, 20164425]

約数ペア:

[(1, 20164425), (3, 6721475), (5, 4032885), (15, 1344295), (25, 806577), (29, 695325), (73, 276225), (75, 268859), (87, 231775), (127, 158775), (145, 139065), (219, 92075), (365, 55245), (381, 52925), (435, 46355), (635, 31755), (725, 27813), (1095, 18415), (1825, 11049), (1905, 10585), (2117, 9525), (2175, 9271), (3175, 6351), (3683, 5475)]