20191283525

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 29825376768

約数和(自身を除く): 9634093243

約数列:

[1, 5, 7, 25, 35, 71, 73, 113, 175, 197, 355, 365, 497, 511, 565, 791, 985, 1379, 1775, 1825, 2485, 2555, 2825, 3955, 4925, 5183, 6895, 8023, 8249, 12425, 12775, 13987, 14381, 19775, 22261, 25915, 34475, 36281, 40115, 41245, 56161, 57743, 69935, 71905, 97909, 100667, 111305, 129575, 155827, 181405, 200575, 206225, 280805, 288715, 349675, 359525, 489545, 503335, 556525, 585679, 779135, 907025, 1021051, 1404025, 1443575, 1580531, 1625053, 2447725, 2516675, 2928395, 3895675, 4099753, 5105255, 7147357, 7902655, 8125265, 11063717, 11375371, 14641975, 20498765, 25526275, 35736785, 39513275, 40626325, 55318585, 56876855, 102493825, 115378763, 178683925, 276592925, 284384275, 576893815, 807651341, 2884469075, 4038256705, 20191283525]

約数ペア:

[(1, 20191283525), (5, 4038256705), (7, 2884469075), (25, 807651341), (35, 576893815), (71, 284384275), (73, 276592925), (113, 178683925), (175, 115378763), (197, 102493825), (355, 56876855), (365, 55318585), (497, 40626325), (511, 39513275), (565, 35736785), (791, 25526275), (985, 20498765), (1379, 14641975), (1775, 11375371), (1825, 11063717), (2485, 8125265), (2555, 7902655), (2825, 7147357), (3955, 5105255), (4925, 4099753), (5183, 3895675), (6895, 2928395), (8023, 2516675), (8249, 2447725), (12425, 1625053), (12775, 1580531), (13987, 1443575), (14381, 1404025), (19775, 1021051), (22261, 907025), (25915, 779135), (34475, 585679), (36281, 556525), (40115, 503335), (41245, 489545), (56161, 359525), (57743, 349675), (69935, 288715), (71905, 280805), (97909, 206225), (100667, 200575), (111305, 181405), (129575, 155827)]