2128588720

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{26849}}^1$

素因数の和:27853

約数の個数: 40

約数和(自身を含む): 4954147200

約数和(自身を除く): 2825558480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3964, 4955, 7928, 9910, 15856, 19820, 26849, 39640, 53698, 79280, 107396, 134245, 214792, 268490, 429584, 536980, 1073960, 2147920, 26607359, 53214718, 106429436, 133036795, 212858872, 266073590, 425717744, 532147180, 1064294360, 2128588720]

約数ペア:

[(1, 2128588720), (2, 1064294360), (4, 532147180), (5, 425717744), (8, 266073590), (10, 212858872), (16, 133036795), (20, 106429436), (40, 53214718), (80, 26607359), (991, 2147920), (1982, 1073960), (3964, 536980), (4955, 429584), (7928, 268490), (9910, 214792), (15856, 134245), (19820, 107396), (26849, 79280), (39640, 53698)]