215361280

素因数分解:

$2^8\times 5^1\times {\mathrm{311}}^1\times {\mathrm{541}}^1$

素因数の和:873

約数の個数: 72

約数和(自身を含む): 518472864

約数和(自身を除く): 303111584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 311, 320, 541, 622, 640, 1082, 1244, 1280, 1555, 2164, 2488, 2705, 3110, 4328, 4976, 5410, 6220, 8656, 9952, 10820, 12440, 17312, 19904, 21640, 24880, 34624, 39808, 43280, 49760, 69248, 79616, 86560, 99520, 138496, 168251, 173120, 199040, 336502, 346240, 398080, 673004, 692480, 841255, 1346008, 1682510, 2692016, 3365020, 5384032, 6730040, 10768064, 13460080, 21536128, 26920160, 43072256, 53840320, 107680640, 215361280]

約数ペア:

[(1, 215361280), (2, 107680640), (4, 53840320), (5, 43072256), (8, 26920160), (10, 21536128), (16, 13460080), (20, 10768064), (32, 6730040), (40, 5384032), (64, 3365020), (80, 2692016), (128, 1682510), (160, 1346008), (256, 841255), (311, 692480), (320, 673004), (541, 398080), (622, 346240), (640, 336502), (1082, 199040), (1244, 173120), (1280, 168251), (1555, 138496), (2164, 99520), (2488, 86560), (2705, 79616), (3110, 69248), (4328, 49760), (4976, 43280), (5410, 39808), (6220, 34624), (8656, 24880), (9952, 21640), (10820, 19904), (12440, 17312)]