65880280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{709}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 156427200

約数和(自身を除く): 90546920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 101, 115, 184, 202, 230, 404, 460, 505, 709, 808, 920, 1010, 1418, 2020, 2323, 2836, 3545, 4040, 4646, 5672, 7090, 9292, 11615, 14180, 16307, 18584, 23230, 28360, 32614, 46460, 65228, 71609, 81535, 92920, 130456, 143218, 163070, 286436, 326140, 358045, 572872, 652280, 716090, 1432180, 1647007, 2864360, 3294014, 6588028, 8235035, 13176056, 16470070, 32940140, 65880280]

約数ペア:

[(1, 65880280), (2, 32940140), (4, 16470070), (5, 13176056), (8, 8235035), (10, 6588028), (20, 3294014), (23, 2864360), (40, 1647007), (46, 1432180), (92, 716090), (101, 652280), (115, 572872), (184, 358045), (202, 326140), (230, 286436), (404, 163070), (460, 143218), (505, 130456), (709, 92920), (808, 81535), (920, 71609), (1010, 65228), (1418, 46460), (2020, 32614), (2323, 28360), (2836, 23230), (3545, 18584), (4040, 16307), (4646, 14180), (5672, 11615), (7090, 9292)]