274340840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^2$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 633871980

約数和(自身を除く): 359531140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 409, 410, 818, 820, 1636, 1640, 2045, 3272, 4090, 8180, 16360, 16769, 33538, 67076, 83845, 134152, 167281, 167690, 334562, 335380, 669124, 670760, 836405, 1338248, 1672810, 3345620, 6691240, 6858521, 13717042, 27434084, 34292605, 54868168, 68585210, 137170420, 274340840]

約数ペア:

[(1, 274340840), (2, 137170420), (4, 68585210), (5, 54868168), (8, 34292605), (10, 27434084), (20, 13717042), (40, 6858521), (41, 6691240), (82, 3345620), (164, 1672810), (205, 1338248), (328, 836405), (409, 670760), (410, 669124), (818, 335380), (820, 334562), (1636, 167690), (1640, 167281), (2045, 134152), (3272, 83845), (4090, 67076), (8180, 33538), (16360, 16769)]