19884620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{821}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 48057408

約数和(自身を除く): 28172788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 346, 692, 821, 865, 1211, 1642, 1730, 2422, 3284, 3460, 4105, 4844, 5747, 6055, 8210, 11494, 12110, 16420, 22988, 24220, 28735, 57470, 114940, 142033, 284066, 568132, 710165, 994231, 1420330, 1988462, 2840660, 3976924, 4971155, 9942310, 19884620]

約数ペア:

[(1, 19884620), (2, 9942310), (4, 4971155), (5, 3976924), (7, 2840660), (10, 1988462), (14, 1420330), (20, 994231), (28, 710165), (35, 568132), (70, 284066), (140, 142033), (173, 114940), (346, 57470), (692, 28735), (821, 24220), (865, 22988), (1211, 16420), (1642, 12110), (1730, 11494), (2422, 8210), (3284, 6055), (3460, 5747), (4105, 4844)]