209215520

素因数分解:

$2^5\times 5^1\times {\mathrm{541}}^1\times {\mathrm{2417}}^1$

素因数の和:2973

約数の個数: 48

約数和(自身を含む): 495390168

約数和(自身を除く): 286174648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 541, 1082, 2164, 2417, 2705, 4328, 4834, 5410, 8656, 9668, 10820, 12085, 17312, 19336, 21640, 24170, 38672, 43280, 48340, 77344, 86560, 96680, 193360, 386720, 1307597, 2615194, 5230388, 6537985, 10460776, 13075970, 20921552, 26151940, 41843104, 52303880, 104607760, 209215520]

約数ペア:

[(1, 209215520), (2, 104607760), (4, 52303880), (5, 41843104), (8, 26151940), (10, 20921552), (16, 13075970), (20, 10460776), (32, 6537985), (40, 5230388), (80, 2615194), (160, 1307597), (541, 386720), (1082, 193360), (2164, 96680), (2417, 86560), (2705, 77344), (4328, 48340), (4834, 43280), (5410, 38672), (8656, 24170), (9668, 21640), (10820, 19336), (12085, 17312)]