217517580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172633}}^1$

素因数の和:172655

約数の個数: 72

約数和(自身を含む): 754065312

約数和(自身を除く): 536547732

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172633, 345266, 517899, 690532, 863165, 1035798, 1208431, 1553697, 1726330, 2071596, 2416862, 2589495, 3107394, 3452660, 3625293, 4833724, 5178990, 6042155, 6214788, 7250586, 7768485, 10357980, 10875879, 12084310, 14501172, 15536970, 18126465, 21751758, 24168620, 31073940, 36252930, 43503516, 54379395, 72505860, 108758790, 217517580]

約数ペア:

[(1, 217517580), (2, 108758790), (3, 72505860), (4, 54379395), (5, 43503516), (6, 36252930), (7, 31073940), (9, 24168620), (10, 21751758), (12, 18126465), (14, 15536970), (15, 14501172), (18, 12084310), (20, 10875879), (21, 10357980), (28, 7768485), (30, 7250586), (35, 6214788), (36, 6042155), (42, 5178990), (45, 4833724), (60, 3625293), (63, 3452660), (70, 3107394), (84, 2589495), (90, 2416862), (105, 2071596), (126, 1726330), (140, 1553697), (180, 1208431), (210, 1035798), (252, 863165), (315, 690532), (420, 517899), (630, 345266), (1260, 172633)]