278324960

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15959}}^1$

素因数の和:16083

約数の個数: 48

約数和(自身を含む): 663616800

約数和(自身を除く): 385291840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 15959, 17440, 31918, 63836, 79795, 127672, 159590, 255344, 319180, 510688, 638360, 1276720, 1739531, 2553440, 3479062, 6958124, 8697655, 13916248, 17395310, 27832496, 34790620, 55664992, 69581240, 139162480, 278324960]

約数ペア:

[(1, 278324960), (2, 139162480), (4, 69581240), (5, 55664992), (8, 34790620), (10, 27832496), (16, 17395310), (20, 13916248), (32, 8697655), (40, 6958124), (80, 3479062), (109, 2553440), (160, 1739531), (218, 1276720), (436, 638360), (545, 510688), (872, 319180), (1090, 255344), (1744, 159590), (2180, 127672), (3488, 79795), (4360, 63836), (8720, 31918), (15959, 17440)]