217366940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1619}}^1$

素因数の和:1779

約数の個数: 72

約数和(自身を含む): 535202640

約数和(自身を除く): 317835700

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, 1619, 1918, 2740, 3238, 3836, 4795, 6476, 6713, 8095, 9590, 11333, 13426, 16190, 19180, 22666, 26852, 32380, 33565, 45332, 56665, 67130, 79331, 113330, 134260, 158662, 221803, 226660, 317324, 396655, 443606, 793310, 887212, 1109015, 1552621, 1586620, 2218030, 3105242, 4436060, 6210484, 7763105, 10868347, 15526210, 21736694, 31052420, 43473388, 54341735, 108683470, 217366940]

約数ペア:

[(1, 217366940), (2, 108683470), (4, 54341735), (5, 43473388), (7, 31052420), (10, 21736694), (14, 15526210), (20, 10868347), (28, 7763105), (35, 6210484), (49, 4436060), (70, 3105242), (98, 2218030), (137, 1586620), (140, 1552621), (196, 1109015), (245, 887212), (274, 793310), (490, 443606), (548, 396655), (685, 317324), (959, 226660), (980, 221803), (1370, 158662), (1619, 134260), (1918, 113330), (2740, 79331), (3238, 67130), (3836, 56665), (4795, 45332), (6476, 33565), (6713, 32380), (8095, 26852), (9590, 22666), (11333, 19180), (13426, 16190)]