20711600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1$

素因数の和:607

約数の個数: 120

約数和(自身を含む): 61350240

約数和(自身を除く): 40638640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 175, 182, 200, 208, 260, 280, 325, 350, 364, 400, 455, 520, 560, 569, 650, 700, 728, 910, 1040, 1138, 1300, 1400, 1456, 1820, 2275, 2276, 2600, 2800, 2845, 3640, 3983, 4550, 4552, 5200, 5690, 7280, 7397, 7966, 9100, 9104, 11380, 14225, 14794, 15932, 18200, 19915, 22760, 28450, 29588, 31864, 36400, 36985, 39830, 45520, 51779, 56900, 59176, 63728, 73970, 79660, 99575, 103558, 113800, 118352, 147940, 159320, 184925, 199150, 207116, 227600, 258895, 295880, 318640, 369850, 398300, 414232, 517790, 591760, 739700, 796600, 828464, 1035580, 1294475, 1479400, 1593200, 2071160, 2588950, 2958800, 4142320, 5177900, 10355800, 20711600]

約数ペア:

[(1, 20711600), (2, 10355800), (4, 5177900), (5, 4142320), (7, 2958800), (8, 2588950), (10, 2071160), (13, 1593200), (14, 1479400), (16, 1294475), (20, 1035580), (25, 828464), (26, 796600), (28, 739700), (35, 591760), (40, 517790), (50, 414232), (52, 398300), (56, 369850), (65, 318640), (70, 295880), (80, 258895), (91, 227600), (100, 207116), (104, 199150), (112, 184925), (130, 159320), (140, 147940), (175, 118352), (182, 113800), (200, 103558), (208, 99575), (260, 79660), (280, 73970), (325, 63728), (350, 59176), (364, 56900), (400, 51779), (455, 45520), (520, 39830), (560, 36985), (569, 36400), (650, 31864), (700, 29588), (728, 28450), (910, 22760), (1040, 19915), (1138, 18200), (1300, 15932), (1400, 14794), (1456, 14225), (1820, 11380), (2275, 9104), (2276, 9100), (2600, 7966), (2800, 7397), (2845, 7280), (3640, 5690), (3983, 5200), (4550, 4552)]