4004780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 9224544

約数和(自身を除く): 5219764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 211, 260, 292, 365, 422, 730, 844, 949, 1055, 1460, 1898, 2110, 2743, 3796, 4220, 4745, 5486, 9490, 10972, 13715, 15403, 18980, 27430, 30806, 54860, 61612, 77015, 154030, 200239, 308060, 400478, 800956, 1001195, 2002390, 4004780]

約数ペア:

[(1, 4004780), (2, 2002390), (4, 1001195), (5, 800956), (10, 400478), (13, 308060), (20, 200239), (26, 154030), (52, 77015), (65, 61612), (73, 54860), (130, 30806), (146, 27430), (211, 18980), (260, 15403), (292, 13715), (365, 10972), (422, 9490), (730, 5486), (844, 4745), (949, 4220), (1055, 3796), (1460, 2743), (1898, 2110)]