661520880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{918779}}^1$

素因数の和:918798

約数の個数: 60

約数和(自身を含む): 2221610040

約数和(自身を除く): 1560089160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 918779, 1837558, 2756337, 3675116, 4593895, 5512674, 7350232, 8269011, 9187790, 11025348, 13781685, 14700464, 16538022, 18375580, 22050696, 27563370, 33076044, 36751160, 41345055, 44101392, 55126740, 66152088, 73502320, 82690110, 110253480, 132304176, 165380220, 220506960, 330760440, 661520880]

約数ペア:

[(1, 661520880), (2, 330760440), (3, 220506960), (4, 165380220), (5, 132304176), (6, 110253480), (8, 82690110), (9, 73502320), (10, 66152088), (12, 55126740), (15, 44101392), (16, 41345055), (18, 36751160), (20, 33076044), (24, 27563370), (30, 22050696), (36, 18375580), (40, 16538022), (45, 14700464), (48, 13781685), (60, 11025348), (72, 9187790), (80, 8269011), (90, 7350232), (120, 5512674), (144, 4593895), (180, 3675116), (240, 2756337), (360, 1837558), (720, 918779)]