16978480

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2557}}^1$

素因数の和:2653

約数の個数: 40

約数和(自身を含む): 39966192

約数和(自身を除く): 22987712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2557, 3320, 5114, 6640, 10228, 12785, 20456, 25570, 40912, 51140, 102280, 204560, 212231, 424462, 848924, 1061155, 1697848, 2122310, 3395696, 4244620, 8489240, 16978480]

約数ペア:

[(1, 16978480), (2, 8489240), (4, 4244620), (5, 3395696), (8, 2122310), (10, 1697848), (16, 1061155), (20, 848924), (40, 424462), (80, 212231), (83, 204560), (166, 102280), (332, 51140), (415, 40912), (664, 25570), (830, 20456), (1328, 12785), (1660, 10228), (2557, 6640), (3320, 5114)]