209126720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^3\times {\mathrm{491}}^1$

素因数の和:541

約数の個数: 112

約数和(自身を含む): 548859456

約数和(自身を除く): 339732736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 160, 176, 220, 242, 320, 352, 440, 484, 491, 605, 704, 880, 968, 982, 1210, 1331, 1760, 1936, 1964, 2420, 2455, 2662, 3520, 3872, 3928, 4840, 4910, 5324, 5401, 6655, 7744, 7856, 9680, 9820, 10648, 10802, 13310, 15712, 19360, 19640, 21296, 21604, 26620, 27005, 31424, 38720, 39280, 42592, 43208, 53240, 54010, 59411, 78560, 85184, 86416, 106480, 108020, 118822, 157120, 172832, 212960, 216040, 237644, 297055, 345664, 425920, 432080, 475288, 594110, 653521, 864160, 950576, 1188220, 1307042, 1728320, 1901152, 2376440, 2614084, 3267605, 3802304, 4752880, 5228168, 6535210, 9505760, 10456336, 13070420, 19011520, 20912672, 26140840, 41825344, 52281680, 104563360, 209126720]

約数ペア:

[(1, 209126720), (2, 104563360), (4, 52281680), (5, 41825344), (8, 26140840), (10, 20912672), (11, 19011520), (16, 13070420), (20, 10456336), (22, 9505760), (32, 6535210), (40, 5228168), (44, 4752880), (55, 3802304), (64, 3267605), (80, 2614084), (88, 2376440), (110, 1901152), (121, 1728320), (160, 1307042), (176, 1188220), (220, 950576), (242, 864160), (320, 653521), (352, 594110), (440, 475288), (484, 432080), (491, 425920), (605, 345664), (704, 297055), (880, 237644), (968, 216040), (982, 212960), (1210, 172832), (1331, 157120), (1760, 118822), (1936, 108020), (1964, 106480), (2420, 86416), (2455, 85184), (2662, 78560), (3520, 59411), (3872, 54010), (3928, 53240), (4840, 43208), (4910, 42592), (5324, 39280), (5401, 38720), (6655, 31424), (7744, 27005), (7856, 26620), (9680, 21604), (9820, 21296), (10648, 19640), (10802, 19360), (13310, 15712)]