20193960920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{613}}^1\times {\mathrm{4057}}^1$

素因数の和:4717

約数の個数: 128

約数和(自身を含む): 53818819200

約数和(自身を除く): 33624858280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 613, 812, 1015, 1160, 1226, 1624, 2030, 2452, 3065, 4057, 4060, 4291, 4904, 6130, 8114, 8120, 8582, 12260, 16228, 17164, 17777, 20285, 21455, 24520, 28399, 32456, 34328, 35554, 40570, 42910, 56798, 71108, 81140, 85820, 88885, 113596, 117653, 124439, 141995, 142216, 162280, 171640, 177770, 227192, 235306, 248878, 283990, 355540, 470612, 497756, 567980, 588265, 622195, 711080, 823571, 941224, 995512, 1135960, 1176530, 1244390, 1647142, 2353060, 2486941, 2488780, 3294284, 4117855, 4706120, 4973882, 4977560, 6588568, 8235710, 9947764, 12434705, 16471420, 17408587, 19895528, 24869410, 32942840, 34817174, 49738820, 69634348, 72121289, 87042935, 99477640, 139268696, 144242578, 174085870, 288485156, 348171740, 360606445, 504849023, 576970312, 696343480, 721212890, 1009698046, 1442425780, 2019396092, 2524245115, 2884851560, 4038792184, 5048490230, 10096980460, 20193960920]

約数ペア:

[(1, 20193960920), (2, 10096980460), (4, 5048490230), (5, 4038792184), (7, 2884851560), (8, 2524245115), (10, 2019396092), (14, 1442425780), (20, 1009698046), (28, 721212890), (29, 696343480), (35, 576970312), (40, 504849023), (56, 360606445), (58, 348171740), (70, 288485156), (116, 174085870), (140, 144242578), (145, 139268696), (203, 99477640), (232, 87042935), (280, 72121289), (290, 69634348), (406, 49738820), (580, 34817174), (613, 32942840), (812, 24869410), (1015, 19895528), (1160, 17408587), (1226, 16471420), (1624, 12434705), (2030, 9947764), (2452, 8235710), (3065, 6588568), (4057, 4977560), (4060, 4973882), (4291, 4706120), (4904, 4117855), (6130, 3294284), (8114, 2488780), (8120, 2486941), (8582, 2353060), (12260, 1647142), (16228, 1244390), (17164, 1176530), (17777, 1135960), (20285, 995512), (21455, 941224), (24520, 823571), (28399, 711080), (32456, 622195), (34328, 588265), (35554, 567980), (40570, 497756), (42910, 470612), (56798, 355540), (71108, 283990), (81140, 248878), (85820, 235306), (88885, 227192), (113596, 177770), (117653, 171640), (124439, 162280), (141995, 142216)]