221265760

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9949}}^1$

素因数の和:10103

約数の個数: 48

約数和(自身を含む): 526554000

約数和(自身を除く): 305288240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 9949, 11120, 19898, 22240, 39796, 49745, 79592, 99490, 159184, 198980, 318368, 397960, 795920, 1382911, 1591840, 2765822, 5531644, 6914555, 11063288, 13829110, 22126576, 27658220, 44253152, 55316440, 110632880, 221265760]

約数ペア:

[(1, 221265760), (2, 110632880), (4, 55316440), (5, 44253152), (8, 27658220), (10, 22126576), (16, 13829110), (20, 11063288), (32, 6914555), (40, 5531644), (80, 2765822), (139, 1591840), (160, 1382911), (278, 795920), (556, 397960), (695, 318368), (1112, 198980), (1390, 159184), (2224, 99490), (2780, 79592), (4448, 49745), (5560, 39796), (9949, 22240), (11120, 19898)]