104128520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{63493}}^1$

素因数の和:63545

約数の個数: 32

約数和(自身を含む): 240007320

約数和(自身を除く): 135878800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 63493, 126986, 253972, 317465, 507944, 634930, 1269860, 2539720, 2603213, 5206426, 10412852, 13016065, 20825704, 26032130, 52064260, 104128520]

約数ペア:

[(1, 104128520), (2, 52064260), (4, 26032130), (5, 20825704), (8, 13016065), (10, 10412852), (20, 5206426), (40, 2603213), (41, 2539720), (82, 1269860), (164, 634930), (205, 507944), (328, 317465), (410, 253972), (820, 126986), (1640, 63493)]