78810620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{587}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 194258736

約数和(自身を除く): 115448116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 587, 685, 959, 980, 1174, 1370, 1918, 2348, 2740, 2935, 3836, 4109, 4795, 5870, 6713, 8218, 9590, 11740, 13426, 16436, 19180, 20545, 26852, 28763, 33565, 41090, 57526, 67130, 80419, 82180, 115052, 134260, 143815, 160838, 287630, 321676, 402095, 562933, 575260, 804190, 1125866, 1608380, 2251732, 2814665, 3940531, 5629330, 7881062, 11258660, 15762124, 19702655, 39405310, 78810620]

約数ペア:

[(1, 78810620), (2, 39405310), (4, 19702655), (5, 15762124), (7, 11258660), (10, 7881062), (14, 5629330), (20, 3940531), (28, 2814665), (35, 2251732), (49, 1608380), (70, 1125866), (98, 804190), (137, 575260), (140, 562933), (196, 402095), (245, 321676), (274, 287630), (490, 160838), (548, 143815), (587, 134260), (685, 115052), (959, 82180), (980, 80419), (1174, 67130), (1370, 57526), (1918, 41090), (2348, 33565), (2740, 28763), (2935, 26852), (3836, 20545), (4109, 19180), (4795, 16436), (5870, 13426), (6713, 11740), (8218, 9590)]