130221920

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2617}}^1$

素因数の和:2943

約数の個数: 48

約数和(自身を含む): 308756448

約数和(自身を除く): 178534528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 622, 1244, 1555, 2488, 2617, 3110, 4976, 5234, 6220, 9952, 10468, 12440, 13085, 20936, 24880, 26170, 41872, 49760, 52340, 83744, 104680, 209360, 418720, 813887, 1627774, 3255548, 4069435, 6511096, 8138870, 13022192, 16277740, 26044384, 32555480, 65110960, 130221920]

約数ペア:

[(1, 130221920), (2, 65110960), (4, 32555480), (5, 26044384), (8, 16277740), (10, 13022192), (16, 8138870), (20, 6511096), (32, 4069435), (40, 3255548), (80, 1627774), (160, 813887), (311, 418720), (622, 209360), (1244, 104680), (1555, 83744), (2488, 52340), (2617, 49760), (3110, 41872), (4976, 26170), (5234, 24880), (6220, 20936), (9952, 13085), (10468, 12440)]