256357080

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4423}}^1$

素因数の和:4470

約数の個数: 192

約数和(自身を含む): 993807360

約数和(自身を除く): 737450280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 115, 120, 126, 138, 140, 161, 168, 180, 184, 207, 210, 230, 252, 276, 280, 315, 322, 345, 360, 414, 420, 460, 483, 504, 552, 630, 644, 690, 805, 828, 840, 920, 966, 1035, 1260, 1288, 1380, 1449, 1610, 1656, 1932, 2070, 2415, 2520, 2760, 2898, 3220, 3864, 4140, 4423, 4830, 5796, 6440, 7245, 8280, 8846, 9660, 11592, 13269, 14490, 17692, 19320, 22115, 26538, 28980, 30961, 35384, 39807, 44230, 53076, 57960, 61922, 66345, 79614, 88460, 92883, 101729, 106152, 123844, 132690, 154805, 159228, 176920, 185766, 199035, 203458, 247688, 265380, 278649, 305187, 309610, 318456, 371532, 398070, 406916, 464415, 508645, 530760, 557298, 610374, 619220, 712103, 743064, 796140, 813832, 915561, 928830, 1017290, 1114596, 1220748, 1238440, 1393245, 1424206, 1525935, 1592280, 1831122, 1857660, 2034580, 2136309, 2229192, 2441496, 2786490, 2848412, 3051870, 3560515, 3662244, 3715320, 4069160, 4272618, 4577805, 5572980, 5696824, 6103740, 6408927, 7121030, 7324488, 8545236, 9155610, 10681545, 11145960, 12207480, 12817854, 14242060, 17090472, 18311220, 21363090, 25635708, 28484120, 32044635, 36622440, 42726180, 51271416, 64089270, 85452360, 128178540, 256357080]

約数ペア:

[(1, 256357080), (2, 128178540), (3, 85452360), (4, 64089270), (5, 51271416), (6, 42726180), (7, 36622440), (8, 32044635), (9, 28484120), (10, 25635708), (12, 21363090), (14, 18311220), (15, 17090472), (18, 14242060), (20, 12817854), (21, 12207480), (23, 11145960), (24, 10681545), (28, 9155610), (30, 8545236), (35, 7324488), (36, 7121030), (40, 6408927), (42, 6103740), (45, 5696824), (46, 5572980), (56, 4577805), (60, 4272618), (63, 4069160), (69, 3715320), (70, 3662244), (72, 3560515), (84, 3051870), (90, 2848412), (92, 2786490), (105, 2441496), (115, 2229192), (120, 2136309), (126, 2034580), (138, 1857660), (140, 1831122), (161, 1592280), (168, 1525935), (180, 1424206), (184, 1393245), (207, 1238440), (210, 1220748), (230, 1114596), (252, 1017290), (276, 928830), (280, 915561), (315, 813832), (322, 796140), (345, 743064), (360, 712103), (414, 619220), (420, 610374), (460, 557298), (483, 530760), (504, 508645), (552, 464415), (630, 406916), (644, 398070), (690, 371532), (805, 318456), (828, 309610), (840, 305187), (920, 278649), (966, 265380), (1035, 247688), (1260, 203458), (1288, 199035), (1380, 185766), (1449, 176920), (1610, 159228), (1656, 154805), (1932, 132690), (2070, 123844), (2415, 106152), (2520, 101729), (2760, 92883), (2898, 88460), (3220, 79614), (3864, 66345), (4140, 61922), (4423, 57960), (4830, 53076), (5796, 44230), (6440, 39807), (7245, 35384), (8280, 30961), (8846, 28980), (9660, 26538), (11592, 22115), (13269, 19320), (14490, 17692)]