81650520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{32401}}^1$

素因数の和:32425

約数の個数: 96

約数和(自身を含む): 303282720

約数和(自身を除く): 221632200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 32401, 64802, 97203, 129604, 162005, 194406, 226807, 259208, 291609, 324010, 388812, 453614, 486015, 583218, 648020, 680421, 777624, 907228, 972030, 1134035, 1166436, 1296040, 1360842, 1458045, 1814456, 1944060, 2041263, 2268070, 2332872, 2721684, 2916090, 3402105, 3888120, 4082526, 4536140, 5443368, 5832180, 6804210, 8165052, 9072280, 10206315, 11664360, 13608420, 16330104, 20412630, 27216840, 40825260, 81650520]

約数ペア:

[(1, 81650520), (2, 40825260), (3, 27216840), (4, 20412630), (5, 16330104), (6, 13608420), (7, 11664360), (8, 10206315), (9, 9072280), (10, 8165052), (12, 6804210), (14, 5832180), (15, 5443368), (18, 4536140), (20, 4082526), (21, 3888120), (24, 3402105), (28, 2916090), (30, 2721684), (35, 2332872), (36, 2268070), (40, 2041263), (42, 1944060), (45, 1814456), (56, 1458045), (60, 1360842), (63, 1296040), (70, 1166436), (72, 1134035), (84, 972030), (90, 907228), (105, 777624), (120, 680421), (126, 648020), (140, 583218), (168, 486015), (180, 453614), (210, 388812), (252, 324010), (280, 291609), (315, 259208), (360, 226807), (420, 194406), (504, 162005), (630, 129604), (840, 97203), (1260, 64802), (2520, 32401)]