1890603860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1\times {\mathrm{1657}}^1$

素因数の和:2396

約数の個数: 48

約数和(自身を含む): 4023568080

約数和(自身を除く): 2132964220

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 641, 890, 1282, 1657, 1780, 2564, 3205, 3314, 6410, 6628, 8285, 12820, 16570, 33140, 57049, 114098, 147473, 228196, 285245, 294946, 570490, 589892, 737365, 1062137, 1140980, 1474730, 2124274, 2949460, 4248548, 5310685, 10621370, 21242740, 94530193, 189060386, 378120772, 472650965, 945301930, 1890603860]

約数ペア:

[(1, 1890603860), (2, 945301930), (4, 472650965), (5, 378120772), (10, 189060386), (20, 94530193), (89, 21242740), (178, 10621370), (356, 5310685), (445, 4248548), (641, 2949460), (890, 2124274), (1282, 1474730), (1657, 1140980), (1780, 1062137), (2564, 737365), (3205, 589892), (3314, 570490), (6410, 294946), (6628, 285245), (8285, 228196), (12820, 147473), (16570, 114098), (33140, 57049)]