2019649520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{4447}}^1$

素因数の和:5278

約数の個数: 80

約数和(自身を含む): 5374322688

約数和(自身を除く): 3354673168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 811, 1622, 3244, 4055, 4447, 5677, 6488, 8110, 8894, 11354, 12976, 16220, 17788, 22235, 22708, 28385, 31129, 32440, 35576, 44470, 45416, 56770, 62258, 64880, 71152, 88940, 90832, 113540, 124516, 155645, 177880, 227080, 249032, 311290, 355760, 454160, 498064, 622580, 1245160, 2490320, 3606517, 7213034, 14426068, 18032585, 25245619, 28852136, 36065170, 50491238, 57704272, 72130340, 100982476, 126228095, 144260680, 201964952, 252456190, 288521360, 403929904, 504912380, 1009824760, 2019649520]

約数ペア:

[(1, 2019649520), (2, 1009824760), (4, 504912380), (5, 403929904), (7, 288521360), (8, 252456190), (10, 201964952), (14, 144260680), (16, 126228095), (20, 100982476), (28, 72130340), (35, 57704272), (40, 50491238), (56, 36065170), (70, 28852136), (80, 25245619), (112, 18032585), (140, 14426068), (280, 7213034), (560, 3606517), (811, 2490320), (1622, 1245160), (3244, 622580), (4055, 498064), (4447, 454160), (5677, 355760), (6488, 311290), (8110, 249032), (8894, 227080), (11354, 177880), (12976, 155645), (16220, 124516), (17788, 113540), (22235, 90832), (22708, 88940), (28385, 71152), (31129, 64880), (32440, 62258), (35576, 56770), (44470, 45416)]