16974820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 37029888

約数和(自身を除く): 20055068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 163, 164, 205, 254, 326, 410, 508, 635, 652, 815, 820, 1270, 1630, 2540, 3260, 5207, 6683, 10414, 13366, 20701, 20828, 26035, 26732, 33415, 41402, 52070, 66830, 82804, 103505, 104140, 133660, 207010, 414020, 848741, 1697482, 3394964, 4243705, 8487410, 16974820]

約数ペア:

[(1, 16974820), (2, 8487410), (4, 4243705), (5, 3394964), (10, 1697482), (20, 848741), (41, 414020), (82, 207010), (127, 133660), (163, 104140), (164, 103505), (205, 82804), (254, 66830), (326, 52070), (410, 41402), (508, 33415), (635, 26732), (652, 26035), (815, 20828), (820, 20701), (1270, 13366), (1630, 10414), (2540, 6683), (3260, 5207)]