2450320

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 5769720

約数和(自身を除く): 3319400

約数列:

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

約数ペア:

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