64939140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{51539}}^1$

素因数の和:51561

約数の個数: 72

約数和(自身を含む): 225126720

約数和(自身を除く): 160187580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 51539, 103078, 154617, 206156, 257695, 309234, 360773, 463851, 515390, 618468, 721546, 773085, 927702, 1030780, 1082319, 1443092, 1546170, 1803865, 1855404, 2164638, 2319255, 3092340, 3246957, 3607730, 4329276, 4638510, 5411595, 6493914, 7215460, 9277020, 10823190, 12987828, 16234785, 21646380, 32469570, 64939140]

約数ペア:

[(1, 64939140), (2, 32469570), (3, 21646380), (4, 16234785), (5, 12987828), (6, 10823190), (7, 9277020), (9, 7215460), (10, 6493914), (12, 5411595), (14, 4638510), (15, 4329276), (18, 3607730), (20, 3246957), (21, 3092340), (28, 2319255), (30, 2164638), (35, 1855404), (36, 1803865), (42, 1546170), (45, 1443092), (60, 1082319), (63, 1030780), (70, 927702), (84, 773085), (90, 721546), (105, 618468), (126, 515390), (140, 463851), (180, 360773), (210, 309234), (252, 257695), (315, 206156), (420, 154617), (630, 103078), (1260, 51539)]