129655720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 299635200

約数和(自身を除く): 169979480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 101, 134, 202, 268, 335, 404, 479, 505, 536, 670, 808, 958, 1010, 1340, 1916, 2020, 2395, 2680, 3832, 4040, 4790, 6767, 9580, 13534, 19160, 27068, 32093, 33835, 48379, 54136, 64186, 67670, 96758, 128372, 135340, 160465, 193516, 241895, 256744, 270680, 320930, 387032, 483790, 641860, 967580, 1283720, 1935160, 3241393, 6482786, 12965572, 16206965, 25931144, 32413930, 64827860, 129655720]

約数ペア:

[(1, 129655720), (2, 64827860), (4, 32413930), (5, 25931144), (8, 16206965), (10, 12965572), (20, 6482786), (40, 3241393), (67, 1935160), (101, 1283720), (134, 967580), (202, 641860), (268, 483790), (335, 387032), (404, 320930), (479, 270680), (505, 256744), (536, 241895), (670, 193516), (808, 160465), (958, 135340), (1010, 128372), (1340, 96758), (1916, 67670), (2020, 64186), (2395, 54136), (2680, 48379), (3832, 33835), (4040, 32093), (4790, 27068), (6767, 19160), (9580, 13534)]