831389620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1\times {\mathrm{1381}}^1$

素因数の和:2392

約数の個数: 48

約数和(自身を含む): 1805400576

約数和(自身を除く): 974010956

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 971, 1381, 1942, 2762, 3884, 4855, 5524, 6905, 9710, 13810, 19420, 27620, 30101, 42811, 60202, 85622, 120404, 150505, 171244, 214055, 301010, 428110, 602020, 856220, 1340951, 2681902, 5363804, 6704755, 13409510, 26819020, 41569481, 83138962, 166277924, 207847405, 415694810, 831389620]

約数ペア:

[(1, 831389620), (2, 415694810), (4, 207847405), (5, 166277924), (10, 83138962), (20, 41569481), (31, 26819020), (62, 13409510), (124, 6704755), (155, 5363804), (310, 2681902), (620, 1340951), (971, 856220), (1381, 602020), (1942, 428110), (2762, 301010), (3884, 214055), (4855, 171244), (5524, 150505), (6905, 120404), (9710, 85622), (13810, 60202), (19420, 42811), (27620, 30101)]