638403450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{227}}^1\times {\mathrm{18749}}^1$

素因数の和:18991

約数の個数: 48

約数和(自身を含む): 1590300000

約数和(自身を除く): 951896550

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 227, 454, 681, 1135, 1362, 2270, 3405, 5675, 6810, 11350, 17025, 18749, 34050, 37498, 56247, 93745, 112494, 187490, 281235, 468725, 562470, 937450, 1406175, 2812350, 4256023, 8512046, 12768069, 21280115, 25536138, 42560230, 63840345, 106400575, 127680690, 212801150, 319201725, 638403450]

約数ペア:

[(1, 638403450), (2, 319201725), (3, 212801150), (5, 127680690), (6, 106400575), (10, 63840345), (15, 42560230), (25, 25536138), (30, 21280115), (50, 12768069), (75, 8512046), (150, 4256023), (227, 2812350), (454, 1406175), (681, 937450), (1135, 562470), (1362, 468725), (2270, 281235), (3405, 187490), (5675, 112494), (6810, 93745), (11350, 56247), (17025, 37498), (18749, 34050)]