24997760

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 60404400

約数和(自身を除く): 35406640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 281, 320, 556, 562, 640, 695, 1112, 1124, 1390, 1405, 2224, 2248, 2780, 2810, 4448, 4496, 5560, 5620, 8896, 8992, 11120, 11240, 17792, 17984, 22240, 22480, 35968, 39059, 44480, 44960, 78118, 88960, 89920, 156236, 179840, 195295, 312472, 390590, 624944, 781180, 1249888, 1562360, 2499776, 3124720, 4999552, 6249440, 12498880, 24997760]

約数ペア:

[(1, 24997760), (2, 12498880), (4, 6249440), (5, 4999552), (8, 3124720), (10, 2499776), (16, 1562360), (20, 1249888), (32, 781180), (40, 624944), (64, 390590), (80, 312472), (128, 195295), (139, 179840), (160, 156236), (278, 89920), (281, 88960), (320, 78118), (556, 44960), (562, 44480), (640, 39059), (695, 35968), (1112, 22480), (1124, 22240), (1390, 17984), (1405, 17792), (2224, 11240), (2248, 11120), (2780, 8992), (2810, 8896), (4448, 5620), (4496, 5560)]