778180

素因数分解:

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

素因数の和:136

約数の個数: 48

約数和(自身を含む): 1827504

約数和(自身を除く): 1049324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 73, 82, 130, 146, 164, 205, 260, 292, 365, 410, 533, 730, 820, 949, 1066, 1460, 1898, 2132, 2665, 2993, 3796, 4745, 5330, 5986, 9490, 10660, 11972, 14965, 18980, 29930, 38909, 59860, 77818, 155636, 194545, 389090, 778180]

約数ペア:

[(1, 778180), (2, 389090), (4, 194545), (5, 155636), (10, 77818), (13, 59860), (20, 38909), (26, 29930), (41, 18980), (52, 14965), (65, 11972), (73, 10660), (82, 9490), (130, 5986), (146, 5330), (164, 4745), (205, 3796), (260, 2993), (292, 2665), (365, 2132), (410, 1898), (533, 1460), (730, 1066), (820, 949)]