279245660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{19861}}^1$

素因数の和:19926

約数の個数: 48

約数和(自身を含む): 633995040

約数和(自身を除く): 354749380

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2812, 3515, 7030, 14060, 19861, 39722, 79444, 99305, 198610, 377359, 397220, 734857, 754718, 1469714, 1509436, 1886795, 2939428, 3674285, 3773590, 7348570, 7547180, 13962283, 14697140, 27924566, 55849132, 69811415, 139622830, 279245660]

約数ペア:

[(1, 279245660), (2, 139622830), (4, 69811415), (5, 55849132), (10, 27924566), (19, 14697140), (20, 13962283), (37, 7547180), (38, 7348570), (74, 3773590), (76, 3674285), (95, 2939428), (148, 1886795), (185, 1509436), (190, 1469714), (370, 754718), (380, 734857), (703, 397220), (740, 377359), (1406, 198610), (2812, 99305), (3515, 79444), (7030, 39722), (14060, 19861)]