128529400

素因数分解:

$2^3\times 5^2\times {\mathrm{281}}^1\times {\mathrm{2287}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 300025440

約数和(自身を除く): 171496040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 281, 562, 1124, 1405, 2248, 2287, 2810, 4574, 5620, 7025, 9148, 11240, 11435, 14050, 18296, 22870, 28100, 45740, 56200, 57175, 91480, 114350, 228700, 457400, 642647, 1285294, 2570588, 3213235, 5141176, 6426470, 12852940, 16066175, 25705880, 32132350, 64264700, 128529400]

約数ペア:

[(1, 128529400), (2, 64264700), (4, 32132350), (5, 25705880), (8, 16066175), (10, 12852940), (20, 6426470), (25, 5141176), (40, 3213235), (50, 2570588), (100, 1285294), (200, 642647), (281, 457400), (562, 228700), (1124, 114350), (1405, 91480), (2248, 57175), (2287, 56200), (2810, 45740), (4574, 28100), (5620, 22870), (7025, 18296), (9148, 14050), (11240, 11435)]