4218440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 9564480

約数和(自身を除く): 5346040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 647, 652, 815, 1294, 1304, 1630, 2588, 3235, 3260, 5176, 6470, 6520, 12940, 25880, 105461, 210922, 421844, 527305, 843688, 1054610, 2109220, 4218440]

約数ペア:

[(1, 4218440), (2, 2109220), (4, 1054610), (5, 843688), (8, 527305), (10, 421844), (20, 210922), (40, 105461), (163, 25880), (326, 12940), (647, 6520), (652, 6470), (815, 5176), (1294, 3260), (1304, 3235), (1630, 2588)]