72465380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2557}}^1$

素因数の和:2688

約数の個数: 48

約数和(自身を含む): 165451440

約数和(自身を除く): 92986060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2557, 2834, 5114, 5668, 7085, 10228, 12785, 14170, 25570, 28340, 33241, 51140, 66482, 132964, 166205, 278713, 332410, 557426, 664820, 1114852, 1393565, 2787130, 3623269, 5574260, 7246538, 14493076, 18116345, 36232690, 72465380]

約数ペア:

[(1, 72465380), (2, 36232690), (4, 18116345), (5, 14493076), (10, 7246538), (13, 5574260), (20, 3623269), (26, 2787130), (52, 1393565), (65, 1114852), (109, 664820), (130, 557426), (218, 332410), (260, 278713), (436, 166205), (545, 132964), (1090, 66482), (1417, 51140), (2180, 33241), (2557, 28340), (2834, 25570), (5114, 14170), (5668, 12785), (7085, 10228)]