28790500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 63842688

約数和(自身を除く): 35052188

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 500, 710, 811, 1420, 1622, 1775, 3244, 3550, 4055, 7100, 8110, 8875, 16220, 17750, 20275, 35500, 40550, 57581, 81100, 101375, 115162, 202750, 230324, 287905, 405500, 575810, 1151620, 1439525, 2879050, 5758100, 7197625, 14395250, 28790500]

約数ペア:

[(1, 28790500), (2, 14395250), (4, 7197625), (5, 5758100), (10, 2879050), (20, 1439525), (25, 1151620), (50, 575810), (71, 405500), (100, 287905), (125, 230324), (142, 202750), (250, 115162), (284, 101375), (355, 81100), (500, 57581), (710, 40550), (811, 35500), (1420, 20275), (1622, 17750), (1775, 16220), (3244, 8875), (3550, 8110), (4055, 7100)]