28746520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{827}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 71539200

約数和(自身を除く): 42792680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 827, 869, 1580, 1654, 1738, 3160, 3308, 3476, 4135, 4345, 6616, 6952, 8270, 8690, 9097, 16540, 17380, 18194, 33080, 34760, 36388, 45485, 65333, 72776, 90970, 130666, 181940, 261332, 326665, 363880, 522664, 653330, 718663, 1306660, 1437326, 2613320, 2874652, 3593315, 5749304, 7186630, 14373260, 28746520]

約数ペア:

[(1, 28746520), (2, 14373260), (4, 7186630), (5, 5749304), (8, 3593315), (10, 2874652), (11, 2613320), (20, 1437326), (22, 1306660), (40, 718663), (44, 653330), (55, 522664), (79, 363880), (88, 326665), (110, 261332), (158, 181940), (220, 130666), (316, 90970), (395, 72776), (440, 65333), (632, 45485), (790, 36388), (827, 34760), (869, 33080), (1580, 18194), (1654, 17380), (1738, 16540), (3160, 9097), (3308, 8690), (3476, 8270), (4135, 6952), (4345, 6616)]