2813420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 6265728

約数和(自身を除く): 3452308

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 73, 82, 94, 146, 164, 188, 205, 235, 292, 365, 410, 470, 730, 820, 940, 1460, 1927, 2993, 3431, 3854, 5986, 6862, 7708, 9635, 11972, 13724, 14965, 17155, 19270, 29930, 34310, 38540, 59860, 68620, 140671, 281342, 562684, 703355, 1406710, 2813420]

約数ペア:

[(1, 2813420), (2, 1406710), (4, 703355), (5, 562684), (10, 281342), (20, 140671), (41, 68620), (47, 59860), (73, 38540), (82, 34310), (94, 29930), (146, 19270), (164, 17155), (188, 14965), (205, 13724), (235, 11972), (292, 9635), (365, 7708), (410, 6862), (470, 5986), (730, 3854), (820, 3431), (940, 2993), (1460, 1927)]