256941320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1367}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 598855680

約数和(自身を除く): 341914360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 127, 148, 185, 254, 296, 370, 508, 635, 740, 1016, 1270, 1367, 1480, 2540, 2734, 4699, 5080, 5468, 6835, 9398, 10936, 13670, 18796, 23495, 27340, 37592, 46990, 50579, 54680, 93980, 101158, 173609, 187960, 202316, 252895, 347218, 404632, 505790, 694436, 868045, 1011580, 1388872, 1736090, 2023160, 3472180, 6423533, 6944360, 12847066, 25694132, 32117665, 51388264, 64235330, 128470660, 256941320]

約数ペア:

[(1, 256941320), (2, 128470660), (4, 64235330), (5, 51388264), (8, 32117665), (10, 25694132), (20, 12847066), (37, 6944360), (40, 6423533), (74, 3472180), (127, 2023160), (148, 1736090), (185, 1388872), (254, 1011580), (296, 868045), (370, 694436), (508, 505790), (635, 404632), (740, 347218), (1016, 252895), (1270, 202316), (1367, 187960), (1480, 173609), (2540, 101158), (2734, 93980), (4699, 54680), (5080, 50579), (5468, 46990), (6835, 37592), (9398, 27340), (10936, 23495), (13670, 18796)]