4900640

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 11725560

約数和(自身を除く): 6824920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 281, 436, 545, 562, 872, 1090, 1124, 1405, 1744, 2180, 2248, 2810, 3488, 4360, 4496, 5620, 8720, 8992, 11240, 17440, 22480, 30629, 44960, 61258, 122516, 153145, 245032, 306290, 490064, 612580, 980128, 1225160, 2450320, 4900640]

約数ペア:

[(1, 4900640), (2, 2450320), (4, 1225160), (5, 980128), (8, 612580), (10, 490064), (16, 306290), (20, 245032), (32, 153145), (40, 122516), (80, 61258), (109, 44960), (160, 30629), (218, 22480), (281, 17440), (436, 11240), (545, 8992), (562, 8720), (872, 5620), (1090, 4496), (1124, 4360), (1405, 3488), (1744, 2810), (2180, 2248)]