20960040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 68688000

約数和(自身を除く): 47727960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 29, 30, 38, 40, 57, 58, 60, 76, 87, 95, 114, 116, 120, 145, 152, 174, 190, 228, 232, 285, 290, 317, 348, 380, 435, 456, 551, 570, 580, 634, 696, 760, 870, 951, 1102, 1140, 1160, 1268, 1585, 1653, 1740, 1902, 2204, 2280, 2536, 2755, 3170, 3306, 3480, 3804, 4408, 4755, 5510, 6023, 6340, 6612, 7608, 8265, 9193, 9510, 11020, 12046, 12680, 13224, 16530, 18069, 18386, 19020, 22040, 24092, 27579, 30115, 33060, 36138, 36772, 38040, 45965, 48184, 55158, 60230, 66120, 72276, 73544, 90345, 91930, 110316, 120460, 137895, 144552, 174667, 180690, 183860, 220632, 240920, 275790, 349334, 361380, 367720, 524001, 551580, 698668, 722760, 873335, 1048002, 1103160, 1397336, 1746670, 2096004, 2620005, 3493340, 4192008, 5240010, 6986680, 10480020, 20960040]

約数ペア:

[(1, 20960040), (2, 10480020), (3, 6986680), (4, 5240010), (5, 4192008), (6, 3493340), (8, 2620005), (10, 2096004), (12, 1746670), (15, 1397336), (19, 1103160), (20, 1048002), (24, 873335), (29, 722760), (30, 698668), (38, 551580), (40, 524001), (57, 367720), (58, 361380), (60, 349334), (76, 275790), (87, 240920), (95, 220632), (114, 183860), (116, 180690), (120, 174667), (145, 144552), (152, 137895), (174, 120460), (190, 110316), (228, 91930), (232, 90345), (285, 73544), (290, 72276), (317, 66120), (348, 60230), (380, 55158), (435, 48184), (456, 45965), (551, 38040), (570, 36772), (580, 36138), (634, 33060), (696, 30115), (760, 27579), (870, 24092), (951, 22040), (1102, 19020), (1140, 18386), (1160, 18069), (1268, 16530), (1585, 13224), (1653, 12680), (1740, 12046), (1902, 11020), (2204, 9510), (2280, 9193), (2536, 8265), (2755, 7608), (3170, 6612), (3306, 6340), (3480, 6023), (3804, 5510), (4408, 4755)]