49995520

素因数分解:

$2^8\times 5^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 121045680

約数和(自身を除く): 71050160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 281, 320, 556, 562, 640, 695, 1112, 1124, 1280, 1390, 1405, 2224, 2248, 2780, 2810, 4448, 4496, 5560, 5620, 8896, 8992, 11120, 11240, 17792, 17984, 22240, 22480, 35584, 35968, 39059, 44480, 44960, 71936, 78118, 88960, 89920, 156236, 177920, 179840, 195295, 312472, 359680, 390590, 624944, 781180, 1249888, 1562360, 2499776, 3124720, 4999552, 6249440, 9999104, 12498880, 24997760, 49995520]

約数ペア:

[(1, 49995520), (2, 24997760), (4, 12498880), (5, 9999104), (8, 6249440), (10, 4999552), (16, 3124720), (20, 2499776), (32, 1562360), (40, 1249888), (64, 781180), (80, 624944), (128, 390590), (139, 359680), (160, 312472), (256, 195295), (278, 179840), (281, 177920), (320, 156236), (556, 89920), (562, 88960), (640, 78118), (695, 71936), (1112, 44960), (1124, 44480), (1280, 39059), (1390, 35968), (1405, 35584), (2224, 22480), (2248, 22240), (2780, 17984), (2810, 17792), (4448, 11240), (4496, 11120), (5560, 8992), (5620, 8896)]