8399140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 20018880

約数和(自身を除く): 11619740

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 31, 38, 46, 62, 76, 92, 95, 115, 124, 155, 190, 230, 310, 380, 437, 460, 589, 620, 713, 874, 961, 1178, 1426, 1748, 1922, 2185, 2356, 2852, 2945, 3565, 3844, 4370, 4805, 5890, 7130, 8740, 9610, 11780, 13547, 14260, 18259, 19220, 22103, 27094, 36518, 44206, 54188, 67735, 73036, 88412, 91295, 110515, 135470, 182590, 221030, 270940, 365180, 419957, 442060, 839914, 1679828, 2099785, 4199570, 8399140]

約数ペア:

[(1, 8399140), (2, 4199570), (4, 2099785), (5, 1679828), (10, 839914), (19, 442060), (20, 419957), (23, 365180), (31, 270940), (38, 221030), (46, 182590), (62, 135470), (76, 110515), (92, 91295), (95, 88412), (115, 73036), (124, 67735), (155, 54188), (190, 44206), (230, 36518), (310, 27094), (380, 22103), (437, 19220), (460, 18259), (589, 14260), (620, 13547), (713, 11780), (874, 9610), (961, 8740), (1178, 7130), (1426, 5890), (1748, 4805), (1922, 4370), (2185, 3844), (2356, 3565), (2852, 2945)]