278340760

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^2\times {\mathrm{1999}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 637380000

約数和(自身を除く): 359039240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 1999, 2360, 3481, 3998, 6962, 7996, 9995, 13924, 15992, 17405, 19990, 27848, 34810, 39980, 69620, 79960, 117941, 139240, 235882, 471764, 589705, 943528, 1179410, 2358820, 4717640, 6958519, 13917038, 27834076, 34792595, 55668152, 69585190, 139170380, 278340760]

約数ペア:

[(1, 278340760), (2, 139170380), (4, 69585190), (5, 55668152), (8, 34792595), (10, 27834076), (20, 13917038), (40, 6958519), (59, 4717640), (118, 2358820), (236, 1179410), (295, 943528), (472, 589705), (590, 471764), (1180, 235882), (1999, 139240), (2360, 117941), (3481, 79960), (3998, 69620), (6962, 39980), (7996, 34810), (9995, 27848), (13924, 19990), (15992, 17405)]