28345380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67489}}^1$

素因数の和:67508

約数の個数: 48

約数和(自身を含む): 90706560

約数和(自身を除く): 62361180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67489, 134978, 202467, 269956, 337445, 404934, 472423, 674890, 809868, 944846, 1012335, 1349780, 1417269, 1889692, 2024670, 2362115, 2834538, 4049340, 4724230, 5669076, 7086345, 9448460, 14172690, 28345380]

約数ペア:

[(1, 28345380), (2, 14172690), (3, 9448460), (4, 7086345), (5, 5669076), (6, 4724230), (7, 4049340), (10, 2834538), (12, 2362115), (14, 2024670), (15, 1889692), (20, 1417269), (21, 1349780), (28, 1012335), (30, 944846), (35, 809868), (42, 674890), (60, 472423), (70, 404934), (84, 337445), (105, 269956), (140, 202467), (210, 134978), (420, 67489)]