128512400

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{3181}}^1$

素因数の和:3300

約数の個数: 60

約数和(自身を含む): 311906004

約数和(自身を除く): 183393604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 2020, 2525, 3181, 4040, 5050, 6362, 8080, 10100, 12724, 15905, 20200, 25448, 31810, 40400, 50896, 63620, 79525, 127240, 159050, 254480, 318100, 321281, 636200, 642562, 1272400, 1285124, 1606405, 2570248, 3212810, 5140496, 6425620, 8032025, 12851240, 16064050, 25702480, 32128100, 64256200, 128512400]

約数ペア:

[(1, 128512400), (2, 64256200), (4, 32128100), (5, 25702480), (8, 16064050), (10, 12851240), (16, 8032025), (20, 6425620), (25, 5140496), (40, 3212810), (50, 2570248), (80, 1606405), (100, 1285124), (101, 1272400), (200, 642562), (202, 636200), (400, 321281), (404, 318100), (505, 254480), (808, 159050), (1010, 127240), (1616, 79525), (2020, 63620), (2525, 50896), (3181, 40400), (4040, 31810), (5050, 25448), (6362, 20200), (8080, 15905), (10100, 12724)]