642506900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 1663560192

約数和(自身を除く): 1021053292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 61, 70, 82, 100, 122, 140, 164, 175, 205, 244, 287, 305, 350, 367, 410, 427, 574, 610, 700, 734, 820, 854, 1025, 1148, 1220, 1435, 1468, 1525, 1708, 1835, 2050, 2135, 2501, 2569, 2870, 3050, 3670, 4100, 4270, 5002, 5138, 5740, 6100, 7175, 7340, 8540, 9175, 10004, 10276, 10675, 12505, 12845, 14350, 15047, 17507, 18350, 21350, 22387, 25010, 25690, 28700, 30094, 35014, 36700, 42700, 44774, 50020, 51380, 60188, 62525, 64225, 70028, 75235, 87535, 89548, 105329, 111935, 125050, 128450, 150470, 156709, 175070, 210658, 223870, 250100, 256900, 300940, 313418, 350140, 376175, 421316, 437675, 447740, 526645, 559675, 626836, 752350, 783545, 875350, 917867, 1053290, 1119350, 1504700, 1567090, 1750700, 1835734, 2106580, 2238700, 2633225, 3134180, 3671468, 3917725, 4589335, 5266450, 6425069, 7835450, 9178670, 10532900, 12850138, 15670900, 18357340, 22946675, 25700276, 32125345, 45893350, 64250690, 91786700, 128501380, 160626725, 321253450, 642506900]

約数ペア:

[(1, 642506900), (2, 321253450), (4, 160626725), (5, 128501380), (7, 91786700), (10, 64250690), (14, 45893350), (20, 32125345), (25, 25700276), (28, 22946675), (35, 18357340), (41, 15670900), (50, 12850138), (61, 10532900), (70, 9178670), (82, 7835450), (100, 6425069), (122, 5266450), (140, 4589335), (164, 3917725), (175, 3671468), (205, 3134180), (244, 2633225), (287, 2238700), (305, 2106580), (350, 1835734), (367, 1750700), (410, 1567090), (427, 1504700), (574, 1119350), (610, 1053290), (700, 917867), (734, 875350), (820, 783545), (854, 752350), (1025, 626836), (1148, 559675), (1220, 526645), (1435, 447740), (1468, 437675), (1525, 421316), (1708, 376175), (1835, 350140), (2050, 313418), (2135, 300940), (2501, 256900), (2569, 250100), (2870, 223870), (3050, 210658), (3670, 175070), (4100, 156709), (4270, 150470), (5002, 128450), (5138, 125050), (5740, 111935), (6100, 105329), (7175, 89548), (7340, 87535), (8540, 75235), (9175, 70028), (10004, 64225), (10276, 62525), (10675, 60188), (12505, 51380), (12845, 50020), (14350, 44774), (15047, 42700), (17507, 36700), (18350, 35014), (21350, 30094), (22387, 28700), (25010, 25690)]