20879250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 61641216

約数和(自身を除く): 40761966

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 41, 42, 50, 70, 75, 82, 97, 105, 123, 125, 150, 175, 194, 205, 210, 246, 250, 287, 291, 350, 375, 410, 485, 525, 574, 582, 615, 679, 750, 861, 875, 970, 1025, 1050, 1230, 1358, 1435, 1455, 1722, 1750, 2037, 2050, 2425, 2625, 2870, 2910, 3075, 3395, 3977, 4074, 4305, 4850, 5125, 5250, 6150, 6790, 7175, 7275, 7954, 8610, 10185, 10250, 11931, 12125, 14350, 14550, 15375, 16975, 19885, 20370, 21525, 23862, 24250, 27839, 30750, 33950, 35875, 36375, 39770, 43050, 50925, 55678, 59655, 71750, 72750, 83517, 84875, 99425, 101850, 107625, 119310, 139195, 167034, 169750, 198850, 215250, 254625, 278390, 298275, 417585, 497125, 509250, 596550, 695975, 835170, 994250, 1391950, 1491375, 2087925, 2982750, 3479875, 4175850, 6959750, 10439625, 20879250]

約数ペア:

[(1, 20879250), (2, 10439625), (3, 6959750), (5, 4175850), (6, 3479875), (7, 2982750), (10, 2087925), (14, 1491375), (15, 1391950), (21, 994250), (25, 835170), (30, 695975), (35, 596550), (41, 509250), (42, 497125), (50, 417585), (70, 298275), (75, 278390), (82, 254625), (97, 215250), (105, 198850), (123, 169750), (125, 167034), (150, 139195), (175, 119310), (194, 107625), (205, 101850), (210, 99425), (246, 84875), (250, 83517), (287, 72750), (291, 71750), (350, 59655), (375, 55678), (410, 50925), (485, 43050), (525, 39770), (574, 36375), (582, 35875), (615, 33950), (679, 30750), (750, 27839), (861, 24250), (875, 23862), (970, 21525), (1025, 20370), (1050, 19885), (1230, 16975), (1358, 15375), (1435, 14550), (1455, 14350), (1722, 12125), (1750, 11931), (2037, 10250), (2050, 10185), (2425, 8610), (2625, 7954), (2870, 7275), (2910, 7175), (3075, 6790), (3395, 6150), (3977, 5250), (4074, 5125), (4305, 4850)]