859804520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1\times {\mathrm{1021}}^1$

素因数の和:1638

約数の個数: 64

約数和(自身を含む): 1992286800

約数和(自身を除く): 1132482280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 569, 740, 1021, 1138, 1480, 2042, 2276, 2845, 4084, 4552, 5105, 5690, 8168, 10210, 11380, 20420, 21053, 22760, 37777, 40840, 42106, 75554, 84212, 105265, 151108, 168424, 188885, 210530, 302216, 377770, 421060, 580949, 755540, 842120, 1161898, 1511080, 2323796, 2904745, 4647592, 5809490, 11618980, 21495113, 23237960, 42990226, 85980452, 107475565, 171960904, 214951130, 429902260, 859804520]

約数ペア:

[(1, 859804520), (2, 429902260), (4, 214951130), (5, 171960904), (8, 107475565), (10, 85980452), (20, 42990226), (37, 23237960), (40, 21495113), (74, 11618980), (148, 5809490), (185, 4647592), (296, 2904745), (370, 2323796), (569, 1511080), (740, 1161898), (1021, 842120), (1138, 755540), (1480, 580949), (2042, 421060), (2276, 377770), (2845, 302216), (4084, 210530), (4552, 188885), (5105, 168424), (5690, 151108), (8168, 105265), (10210, 84212), (11380, 75554), (20420, 42106), (21053, 40840), (22760, 37777)]