20888957375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{683}}^1$

素因数の和:810

約数の個数: 128

約数和(自身を含む): 32267289600

約数和(自身を除く): 11378332225

約数列:

[1, 5, 11, 13, 25, 29, 55, 59, 65, 125, 143, 145, 275, 295, 319, 325, 377, 649, 683, 715, 725, 767, 1375, 1475, 1595, 1625, 1711, 1885, 3245, 3415, 3575, 3625, 3835, 4147, 7375, 7513, 7975, 8437, 8555, 8879, 9425, 16225, 17075, 17875, 18821, 19175, 19807, 20735, 22243, 37565, 39875, 40297, 42185, 42775, 44395, 47125, 81125, 85375, 94105, 95875, 97669, 99035, 103675, 111215, 187825, 201485, 210925, 213875, 217877, 221975, 244673, 257491, 443267, 470525, 488345, 495175, 518375, 523861, 556075, 939125, 1007425, 1054625, 1089385, 1109875, 1168613, 1223365, 1287455, 2216335, 2352625, 2441725, 2475875, 2619305, 2780375, 2832401, 5037125, 5446925, 5762471, 5843065, 6116825, 6437275, 11081675, 12208625, 12854743, 13096525, 14162005, 15191969, 27234625, 28812355, 29215325, 30584125, 32186375, 55408375, 64273715, 65482625, 70810025, 75959845, 144061775, 146076625, 167111659, 321368575, 354050125, 379799225, 720308875, 835558295, 1606842875, 1898996125, 4177791475, 20888957375]

約数ペア:

[(1, 20888957375), (5, 4177791475), (11, 1898996125), (13, 1606842875), (25, 835558295), (29, 720308875), (55, 379799225), (59, 354050125), (65, 321368575), (125, 167111659), (143, 146076625), (145, 144061775), (275, 75959845), (295, 70810025), (319, 65482625), (325, 64273715), (377, 55408375), (649, 32186375), (683, 30584125), (715, 29215325), (725, 28812355), (767, 27234625), (1375, 15191969), (1475, 14162005), (1595, 13096525), (1625, 12854743), (1711, 12208625), (1885, 11081675), (3245, 6437275), (3415, 6116825), (3575, 5843065), (3625, 5762471), (3835, 5446925), (4147, 5037125), (7375, 2832401), (7513, 2780375), (7975, 2619305), (8437, 2475875), (8555, 2441725), (8879, 2352625), (9425, 2216335), (16225, 1287455), (17075, 1223365), (17875, 1168613), (18821, 1109875), (19175, 1089385), (19807, 1054625), (20735, 1007425), (22243, 939125), (37565, 556075), (39875, 523861), (40297, 518375), (42185, 495175), (42775, 488345), (44395, 470525), (47125, 443267), (81125, 257491), (85375, 244673), (94105, 221975), (95875, 217877), (97669, 213875), (99035, 210925), (103675, 201485), (111215, 187825)]