1996280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 5292000

約数和(自身を除く): 3295720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 349, 440, 520, 572, 698, 715, 1144, 1396, 1430, 1745, 2792, 2860, 3490, 3839, 4537, 5720, 6980, 7678, 9074, 13960, 15356, 18148, 19195, 22685, 30712, 36296, 38390, 45370, 49907, 76780, 90740, 99814, 153560, 181480, 199628, 249535, 399256, 499070, 998140, 1996280]

約数ペア:

[(1, 1996280), (2, 998140), (4, 499070), (5, 399256), (8, 249535), (10, 199628), (11, 181480), (13, 153560), (20, 99814), (22, 90740), (26, 76780), (40, 49907), (44, 45370), (52, 38390), (55, 36296), (65, 30712), (88, 22685), (104, 19195), (110, 18148), (130, 15356), (143, 13960), (220, 9074), (260, 7678), (286, 6980), (349, 5720), (440, 4537), (520, 3839), (572, 3490), (698, 2860), (715, 2792), (1144, 1745), (1396, 1430)]