4068880

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:475

約数の個数: 40

約数和(自身を含む): 9546264

約数和(自身を除く): 5477384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 281, 362, 562, 724, 905, 1124, 1405, 1448, 1810, 2248, 2810, 2896, 3620, 4496, 5620, 7240, 11240, 14480, 22480, 50861, 101722, 203444, 254305, 406888, 508610, 813776, 1017220, 2034440, 4068880]

約数ペア:

[(1, 4068880), (2, 2034440), (4, 1017220), (5, 813776), (8, 508610), (10, 406888), (16, 254305), (20, 203444), (40, 101722), (80, 50861), (181, 22480), (281, 14480), (362, 11240), (562, 7240), (724, 5620), (905, 4496), (1124, 3620), (1405, 2896), (1448, 2810), (1810, 2248)]