18883000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:865

約数の個数: 64

約数和(自身を含む): 46163520

約数和(自身を除く): 27280520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 821, 920, 1000, 1150, 1642, 2300, 2875, 3284, 4105, 4600, 5750, 6568, 8210, 11500, 16420, 18883, 20525, 23000, 32840, 37766, 41050, 75532, 82100, 94415, 102625, 151064, 164200, 188830, 205250, 377660, 410500, 472075, 755320, 821000, 944150, 1888300, 2360375, 3776600, 4720750, 9441500, 18883000]

約数ペア:

[(1, 18883000), (2, 9441500), (4, 4720750), (5, 3776600), (8, 2360375), (10, 1888300), (20, 944150), (23, 821000), (25, 755320), (40, 472075), (46, 410500), (50, 377660), (92, 205250), (100, 188830), (115, 164200), (125, 151064), (184, 102625), (200, 94415), (230, 82100), (250, 75532), (460, 41050), (500, 37766), (575, 32840), (821, 23000), (920, 20525), (1000, 18883), (1150, 16420), (1642, 11500), (2300, 8210), (2875, 6568), (3284, 5750), (4105, 4600)]