28271715

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 50035968

約数和(自身を除く): 21764253

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 227, 285, 345, 361, 437, 681, 1083, 1135, 1311, 1805, 2185, 3405, 4313, 5221, 5415, 6555, 8303, 12939, 15663, 21565, 24909, 26105, 41515, 64695, 78315, 81947, 99199, 124545, 245841, 297597, 409735, 495995, 1229205, 1487985, 1884781, 5654343, 9423905, 28271715]

約数ペア:

[(1, 28271715), (3, 9423905), (5, 5654343), (15, 1884781), (19, 1487985), (23, 1229205), (57, 495995), (69, 409735), (95, 297597), (115, 245841), (227, 124545), (285, 99199), (345, 81947), (361, 78315), (437, 64695), (681, 41515), (1083, 26105), (1135, 24909), (1311, 21565), (1805, 15663), (2185, 12939), (3405, 8303), (4313, 6555), (5221, 5415)]