27900405

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1289}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 53529840

約数和(自身を除く): 25629435

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 65, 111, 117, 185, 195, 333, 481, 555, 585, 1289, 1443, 1665, 2405, 3867, 4329, 6445, 7215, 11601, 16757, 19335, 21645, 47693, 50271, 58005, 83785, 143079, 150813, 238465, 251355, 429237, 620009, 715395, 754065, 1860027, 2146185, 3100045, 5580081, 9300135, 27900405]

約数ペア:

[(1, 27900405), (3, 9300135), (5, 5580081), (9, 3100045), (13, 2146185), (15, 1860027), (37, 754065), (39, 715395), (45, 620009), (65, 429237), (111, 251355), (117, 238465), (185, 150813), (195, 143079), (333, 83785), (481, 58005), (555, 50271), (585, 47693), (1289, 21645), (1443, 19335), (1665, 16757), (2405, 11601), (3867, 7215), (4329, 6445)]