4279990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 9398592

約数和(自身を除く): 5118602

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 41, 55, 65, 73, 82, 110, 130, 143, 146, 205, 286, 365, 410, 451, 533, 715, 730, 803, 902, 949, 1066, 1430, 1606, 1898, 2255, 2665, 2993, 4015, 4510, 4745, 5330, 5863, 5986, 8030, 9490, 10439, 11726, 14965, 20878, 29315, 29930, 32923, 38909, 52195, 58630, 65846, 77818, 104390, 164615, 194545, 329230, 389090, 427999, 855998, 2139995, 4279990]

約数ペア:

[(1, 4279990), (2, 2139995), (5, 855998), (10, 427999), (11, 389090), (13, 329230), (22, 194545), (26, 164615), (41, 104390), (55, 77818), (65, 65846), (73, 58630), (82, 52195), (110, 38909), (130, 32923), (143, 29930), (146, 29315), (205, 20878), (286, 14965), (365, 11726), (410, 10439), (451, 9490), (533, 8030), (715, 5986), (730, 5863), (803, 5330), (902, 4745), (949, 4510), (1066, 4015), (1430, 2993), (1606, 2665), (1898, 2255)]