1982207640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{4729}}^1$

素因数の和:5249

約数の個数: 128

約数和(自身を含む): 6811200000

約数和(自身を除く): 4828992360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 499, 840, 998, 1497, 1996, 2495, 2994, 3493, 3992, 4729, 4990, 5988, 6986, 7485, 9458, 9980, 10479, 11976, 13972, 14187, 14970, 17465, 18916, 19960, 20958, 23645, 27944, 28374, 29940, 33103, 34930, 37832, 41916, 47290, 52395, 56748, 59880, 66206, 69860, 70935, 83832, 94580, 99309, 104790, 113496, 132412, 139720, 141870, 165515, 189160, 198618, 209580, 264824, 283740, 331030, 397236, 419160, 496545, 567480, 662060, 794472, 993090, 1324120, 1986180, 2359771, 3972360, 4719542, 7079313, 9439084, 11798855, 14158626, 16518397, 18878168, 23597710, 28317252, 33036794, 35396565, 47195420, 49555191, 56634504, 66073588, 70793130, 82591985, 94390840, 99110382, 132147176, 141586260, 165183970, 198220764, 247775955, 283172520, 330367940, 396441528, 495551910, 660735880, 991103820, 1982207640]

約数ペア:

[(1, 1982207640), (2, 991103820), (3, 660735880), (4, 495551910), (5, 396441528), (6, 330367940), (7, 283172520), (8, 247775955), (10, 198220764), (12, 165183970), (14, 141586260), (15, 132147176), (20, 99110382), (21, 94390840), (24, 82591985), (28, 70793130), (30, 66073588), (35, 56634504), (40, 49555191), (42, 47195420), (56, 35396565), (60, 33036794), (70, 28317252), (84, 23597710), (105, 18878168), (120, 16518397), (140, 14158626), (168, 11798855), (210, 9439084), (280, 7079313), (420, 4719542), (499, 3972360), (840, 2359771), (998, 1986180), (1497, 1324120), (1996, 993090), (2495, 794472), (2994, 662060), (3493, 567480), (3992, 496545), (4729, 419160), (4990, 397236), (5988, 331030), (6986, 283740), (7485, 264824), (9458, 209580), (9980, 198618), (10479, 189160), (11976, 165515), (13972, 141870), (14187, 139720), (14970, 132412), (17465, 113496), (18916, 104790), (19960, 99309), (20958, 94580), (23645, 83832), (27944, 70935), (28374, 69860), (29940, 66206), (33103, 59880), (34930, 56748), (37832, 52395), (41916, 47290)]