639239344

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2339}}^1$

素因数の和:2426

約数の個数: 80

約数和(自身を含む): 1392768000

約数和(自身を除く): 753528656

約数列:

[1, 2, 4, 8, 16, 19, 29, 31, 38, 58, 62, 76, 116, 124, 152, 232, 248, 304, 464, 496, 551, 589, 899, 1102, 1178, 1798, 2204, 2339, 2356, 3596, 4408, 4678, 4712, 7192, 8816, 9356, 9424, 14384, 17081, 18712, 34162, 37424, 44441, 67831, 68324, 72509, 88882, 135662, 136648, 145018, 177764, 271324, 273296, 290036, 355528, 542648, 580072, 711056, 1085296, 1160144, 1288789, 1377671, 2102761, 2577578, 2755342, 4205522, 5155156, 5510684, 8411044, 10310312, 11021368, 16822088, 20620624, 22042736, 33644176, 39952459, 79904918, 159809836, 319619672, 639239344]

約数ペア:

[(1, 639239344), (2, 319619672), (4, 159809836), (8, 79904918), (16, 39952459), (19, 33644176), (29, 22042736), (31, 20620624), (38, 16822088), (58, 11021368), (62, 10310312), (76, 8411044), (116, 5510684), (124, 5155156), (152, 4205522), (232, 2755342), (248, 2577578), (304, 2102761), (464, 1377671), (496, 1288789), (551, 1160144), (589, 1085296), (899, 711056), (1102, 580072), (1178, 542648), (1798, 355528), (2204, 290036), (2339, 273296), (2356, 271324), (3596, 177764), (4408, 145018), (4678, 136648), (4712, 135662), (7192, 88882), (8816, 72509), (9356, 68324), (9424, 67831), (14384, 44441), (17081, 37424), (18712, 34162)]