266774620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2147

約数の個数: 72

約数和(自身を含む): 656779536

約数和(自身を除く): 390004916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 685, 959, 980, 1370, 1918, 1987, 2740, 3836, 3974, 4795, 6713, 7948, 9590, 9935, 13426, 13909, 19180, 19870, 26852, 27818, 33565, 39740, 55636, 67130, 69545, 97363, 134260, 139090, 194726, 272219, 278180, 389452, 486815, 544438, 973630, 1088876, 1361095, 1905533, 1947260, 2722190, 3811066, 5444380, 7622132, 9527665, 13338731, 19055330, 26677462, 38110660, 53354924, 66693655, 133387310, 266774620]

約数ペア:

[(1, 266774620), (2, 133387310), (4, 66693655), (5, 53354924), (7, 38110660), (10, 26677462), (14, 19055330), (20, 13338731), (28, 9527665), (35, 7622132), (49, 5444380), (70, 3811066), (98, 2722190), (137, 1947260), (140, 1905533), (196, 1361095), (245, 1088876), (274, 973630), (490, 544438), (548, 486815), (685, 389452), (959, 278180), (980, 272219), (1370, 194726), (1918, 139090), (1987, 134260), (2740, 97363), (3836, 69545), (3974, 67130), (4795, 55636), (6713, 39740), (7948, 33565), (9590, 27818), (9935, 26852), (13426, 19870), (13909, 19180)]