11905880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 30991680

約数和(自身を除く): 19085800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 421, 505, 707, 808, 842, 1010, 1414, 1684, 2020, 2105, 2828, 2947, 3368, 3535, 4040, 4210, 5656, 5894, 7070, 8420, 11788, 14140, 14735, 16840, 23576, 28280, 29470, 42521, 58940, 85042, 117880, 170084, 212605, 297647, 340168, 425210, 595294, 850420, 1190588, 1488235, 1700840, 2381176, 2976470, 5952940, 11905880]

約数ペア:

[(1, 11905880), (2, 5952940), (4, 2976470), (5, 2381176), (7, 1700840), (8, 1488235), (10, 1190588), (14, 850420), (20, 595294), (28, 425210), (35, 340168), (40, 297647), (56, 212605), (70, 170084), (101, 117880), (140, 85042), (202, 58940), (280, 42521), (404, 29470), (421, 28280), (505, 23576), (707, 16840), (808, 14735), (842, 14140), (1010, 11788), (1414, 8420), (1684, 7070), (2020, 5894), (2105, 5656), (2828, 4210), (2947, 4040), (3368, 3535)]