11915980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 26834976

約数和(自身を除く): 14918996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 347, 404, 505, 694, 1010, 1388, 1717, 1735, 2020, 3434, 3470, 5899, 6868, 6940, 8585, 11798, 17170, 23596, 29495, 34340, 35047, 58990, 70094, 117980, 140188, 175235, 350470, 595799, 700940, 1191598, 2383196, 2978995, 5957990, 11915980]

約数ペア:

[(1, 11915980), (2, 5957990), (4, 2978995), (5, 2383196), (10, 1191598), (17, 700940), (20, 595799), (34, 350470), (68, 175235), (85, 140188), (101, 117980), (170, 70094), (202, 58990), (340, 35047), (347, 34340), (404, 29495), (505, 23596), (694, 17170), (1010, 11798), (1388, 8585), (1717, 6940), (1735, 6868), (2020, 5899), (3434, 3470)]