2161540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 4902912

約数和(自身を除く): 2741372

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 127, 148, 185, 230, 254, 370, 460, 508, 635, 740, 851, 1270, 1702, 2540, 2921, 3404, 4255, 4699, 5842, 8510, 9398, 11684, 14605, 17020, 18796, 23495, 29210, 46990, 58420, 93980, 108077, 216154, 432308, 540385, 1080770, 2161540]

約数ペア:

[(1, 2161540), (2, 1080770), (4, 540385), (5, 432308), (10, 216154), (20, 108077), (23, 93980), (37, 58420), (46, 46990), (74, 29210), (92, 23495), (115, 18796), (127, 17020), (148, 14605), (185, 11684), (230, 9398), (254, 8510), (370, 5842), (460, 4699), (508, 4255), (635, 3404), (740, 2921), (851, 2540), (1270, 1702)]