256121250

素因数分解:

$2^1\times 3^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:930

約数の個数: 160

約数和(自身を含む): 798944256

約数和(自身を除く): 542823006

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 25, 30, 33, 35, 42, 50, 55, 66, 70, 75, 77, 105, 110, 125, 150, 154, 165, 175, 210, 231, 250, 275, 330, 350, 375, 385, 462, 525, 550, 625, 750, 770, 825, 875, 887, 1050, 1155, 1250, 1375, 1650, 1750, 1774, 1875, 1925, 2310, 2625, 2661, 2750, 3750, 3850, 4125, 4375, 4435, 5250, 5322, 5775, 6209, 6875, 8250, 8750, 8870, 9625, 9757, 11550, 12418, 13125, 13305, 13750, 18627, 19250, 19514, 20625, 22175, 26250, 26610, 28875, 29271, 31045, 37254, 41250, 44350, 48125, 48785, 57750, 58542, 62090, 66525, 68299, 93135, 96250, 97570, 110875, 133050, 136598, 144375, 146355, 155225, 186270, 204897, 221750, 243925, 288750, 292710, 310450, 332625, 341495, 409794, 465675, 487850, 554375, 665250, 682990, 731775, 776125, 931350, 1024485, 1108750, 1219625, 1463550, 1552250, 1663125, 1707475, 2048970, 2328375, 2439250, 3326250, 3414950, 3658875, 3880625, 4656750, 5122425, 6098125, 7317750, 7761250, 8537375, 10244850, 11641875, 12196250, 17074750, 18294375, 23283750, 25612125, 36588750, 42686875, 51224250, 85373750, 128060625, 256121250]

約数ペア:

[(1, 256121250), (2, 128060625), (3, 85373750), (5, 51224250), (6, 42686875), (7, 36588750), (10, 25612125), (11, 23283750), (14, 18294375), (15, 17074750), (21, 12196250), (22, 11641875), (25, 10244850), (30, 8537375), (33, 7761250), (35, 7317750), (42, 6098125), (50, 5122425), (55, 4656750), (66, 3880625), (70, 3658875), (75, 3414950), (77, 3326250), (105, 2439250), (110, 2328375), (125, 2048970), (150, 1707475), (154, 1663125), (165, 1552250), (175, 1463550), (210, 1219625), (231, 1108750), (250, 1024485), (275, 931350), (330, 776125), (350, 731775), (375, 682990), (385, 665250), (462, 554375), (525, 487850), (550, 465675), (625, 409794), (750, 341495), (770, 332625), (825, 310450), (875, 292710), (887, 288750), (1050, 243925), (1155, 221750), (1250, 204897), (1375, 186270), (1650, 155225), (1750, 146355), (1774, 144375), (1875, 136598), (1925, 133050), (2310, 110875), (2625, 97570), (2661, 96250), (2750, 93135), (3750, 68299), (3850, 66525), (4125, 62090), (4375, 58542), (4435, 57750), (5250, 48785), (5322, 48125), (5775, 44350), (6209, 41250), (6875, 37254), (8250, 31045), (8750, 29271), (8870, 28875), (9625, 26610), (9757, 26250), (11550, 22175), (12418, 20625), (13125, 19514), (13305, 19250), (13750, 18627)]