21540853120

素因数分解:

$2^7\times 5^1\times {\mathrm{33657583}}^1$

素因数の和:33657602

約数の個数: 32

約数和(自身を含む): 51496103520

約数和(自身を除く): 29955250400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33657583, 67315166, 134630332, 168287915, 269260664, 336575830, 538521328, 673151660, 1077042656, 1346303320, 2154085312, 2692606640, 4308170624, 5385213280, 10770426560, 21540853120]

約数ペア:

[(1, 21540853120), (2, 10770426560), (4, 5385213280), (5, 4308170624), (8, 2692606640), (10, 2154085312), (16, 1346303320), (20, 1077042656), (32, 673151660), (40, 538521328), (64, 336575830), (80, 269260664), (128, 168287915), (160, 134630332), (320, 67315166), (640, 33657583)]