1987016440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{47903}}^1$

素因数の和:47992

約数の個数: 64

約数和(自身を含む): 4811477760

約数和(自身を除く): 2824461320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 1037, 1220, 2074, 2440, 4148, 5185, 8296, 10370, 20740, 41480, 47903, 95806, 191612, 239515, 383224, 479030, 814351, 958060, 1628702, 1916120, 2922083, 3257404, 4071755, 5844166, 6514808, 8143510, 11688332, 14610415, 16287020, 23376664, 29220830, 32574040, 49675411, 58441660, 99350822, 116883320, 198701644, 248377055, 397403288, 496754110, 993508220, 1987016440]

約数ペア:

[(1, 1987016440), (2, 993508220), (4, 496754110), (5, 397403288), (8, 248377055), (10, 198701644), (17, 116883320), (20, 99350822), (34, 58441660), (40, 49675411), (61, 32574040), (68, 29220830), (85, 23376664), (122, 16287020), (136, 14610415), (170, 11688332), (244, 8143510), (305, 6514808), (340, 5844166), (488, 4071755), (610, 3257404), (680, 2922083), (1037, 1916120), (1220, 1628702), (2074, 958060), (2440, 814351), (4148, 479030), (5185, 383224), (8296, 239515), (10370, 191612), (20740, 95806), (41480, 47903)]