31427825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 15444175

約数列:

[1, 5, 11, 13, 25, 55, 59, 65, 143, 149, 275, 295, 325, 649, 715, 745, 767, 1475, 1639, 1937, 3245, 3575, 3725, 3835, 8195, 8437, 8791, 9685, 16225, 19175, 21307, 40975, 42185, 43955, 48425, 96701, 106535, 114283, 210925, 219775, 483505, 532675, 571415, 1257113, 2417525, 2857075, 6285565, 31427825]

約数ペア:

[(1, 31427825), (5, 6285565), (11, 2857075), (13, 2417525), (25, 1257113), (55, 571415), (59, 532675), (65, 483505), (143, 219775), (149, 210925), (275, 114283), (295, 106535), (325, 96701), (649, 48425), (715, 43955), (745, 42185), (767, 40975), (1475, 21307), (1639, 19175), (1937, 16225), (3245, 9685), (3575, 8791), (3725, 8437), (3835, 8195)]