128360800

素因数分解:

$2^5\times 5^2\times {\mathrm{281}}^1\times {\mathrm{571}}^1$

素因数の和:872

約数の個数: 72

約数和(自身を含む): 315026712

約数和(自身を除く): 186665912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 281, 400, 562, 571, 800, 1124, 1142, 1405, 2248, 2284, 2810, 2855, 4496, 4568, 5620, 5710, 7025, 8992, 9136, 11240, 11420, 14050, 14275, 18272, 22480, 22840, 28100, 28550, 44960, 45680, 56200, 57100, 91360, 112400, 114200, 160451, 224800, 228400, 320902, 456800, 641804, 802255, 1283608, 1604510, 2567216, 3209020, 4011275, 5134432, 6418040, 8022550, 12836080, 16045100, 25672160, 32090200, 64180400, 128360800]

約数ペア:

[(1, 128360800), (2, 64180400), (4, 32090200), (5, 25672160), (8, 16045100), (10, 12836080), (16, 8022550), (20, 6418040), (25, 5134432), (32, 4011275), (40, 3209020), (50, 2567216), (80, 1604510), (100, 1283608), (160, 802255), (200, 641804), (281, 456800), (400, 320902), (562, 228400), (571, 224800), (800, 160451), (1124, 114200), (1142, 112400), (1405, 91360), (2248, 57100), (2284, 56200), (2810, 45680), (2855, 44960), (4496, 28550), (4568, 28100), (5620, 22840), (5710, 22480), (7025, 18272), (8992, 14275), (9136, 14050), (11240, 11420)]