7213780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 18701928

約数和(自身を除く): 11488148

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 433, 476, 490, 595, 833, 866, 980, 1190, 1666, 1732, 2165, 2380, 3031, 3332, 4165, 4330, 6062, 7361, 8330, 8660, 12124, 14722, 15155, 16660, 21217, 29444, 30310, 36805, 42434, 51527, 60620, 73610, 84868, 103054, 106085, 147220, 206108, 212170, 257635, 360689, 424340, 515270, 721378, 1030540, 1442756, 1803445, 3606890, 7213780]

約数ペア:

[(1, 7213780), (2, 3606890), (4, 1803445), (5, 1442756), (7, 1030540), (10, 721378), (14, 515270), (17, 424340), (20, 360689), (28, 257635), (34, 212170), (35, 206108), (49, 147220), (68, 106085), (70, 103054), (85, 84868), (98, 73610), (119, 60620), (140, 51527), (170, 42434), (196, 36805), (238, 30310), (245, 29444), (340, 21217), (433, 16660), (476, 15155), (490, 14722), (595, 12124), (833, 8660), (866, 8330), (980, 7361), (1190, 6062), (1666, 4330), (1732, 4165), (2165, 3332), (2380, 3031)]