28784200

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3347}}^1$

素因数の和:3406

約数の個数: 48

約数和(自身を含む): 68500080

約数和(自身を除く): 39715880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 3347, 4300, 6694, 8600, 13388, 16735, 26776, 33470, 66940, 83675, 133880, 143921, 167350, 287842, 334700, 575684, 669400, 719605, 1151368, 1439210, 2878420, 3598025, 5756840, 7196050, 14392100, 28784200]

約数ペア:

[(1, 28784200), (2, 14392100), (4, 7196050), (5, 5756840), (8, 3598025), (10, 2878420), (20, 1439210), (25, 1151368), (40, 719605), (43, 669400), (50, 575684), (86, 334700), (100, 287842), (172, 167350), (200, 143921), (215, 133880), (344, 83675), (430, 66940), (860, 33470), (1075, 26776), (1720, 16735), (2150, 13388), (3347, 8600), (4300, 6694)]