2019920140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{523}}^1\times {\mathrm{563}}^1$

素因数の和:1116

約数の個数: 96

約数和(自身を含む): 4965004800

約数和(自身を除く): 2945084660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 523, 563, 686, 980, 1046, 1126, 1372, 1715, 2092, 2252, 2615, 2815, 3430, 3661, 3941, 5230, 5630, 6860, 7322, 7882, 10460, 11260, 14644, 15764, 18305, 19705, 25627, 27587, 36610, 39410, 51254, 55174, 73220, 78820, 102508, 110348, 128135, 137935, 179389, 193109, 256270, 275870, 294449, 358778, 386218, 512540, 551740, 588898, 717556, 772436, 896945, 965545, 1177796, 1472245, 1793890, 1931090, 2061143, 2944490, 3587780, 3862180, 4122286, 5888980, 8244572, 10305715, 14428001, 20611430, 28856002, 41222860, 57712004, 72140005, 100996007, 144280010, 201992014, 288560020, 403984028, 504980035, 1009960070, 2019920140]

約数ペア:

[(1, 2019920140), (2, 1009960070), (4, 504980035), (5, 403984028), (7, 288560020), (10, 201992014), (14, 144280010), (20, 100996007), (28, 72140005), (35, 57712004), (49, 41222860), (70, 28856002), (98, 20611430), (140, 14428001), (196, 10305715), (245, 8244572), (343, 5888980), (490, 4122286), (523, 3862180), (563, 3587780), (686, 2944490), (980, 2061143), (1046, 1931090), (1126, 1793890), (1372, 1472245), (1715, 1177796), (2092, 965545), (2252, 896945), (2615, 772436), (2815, 717556), (3430, 588898), (3661, 551740), (3941, 512540), (5230, 386218), (5630, 358778), (6860, 294449), (7322, 275870), (7882, 256270), (10460, 193109), (11260, 179389), (14644, 137935), (15764, 128135), (18305, 110348), (19705, 102508), (25627, 78820), (27587, 73220), (36610, 55174), (39410, 51254)]