1909000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:127

約数の個数: 64

約数和(自身を含む): 4717440

約数和(自身を除く): 2808440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 83, 92, 100, 115, 125, 166, 184, 200, 230, 250, 332, 415, 460, 500, 575, 664, 830, 920, 1000, 1150, 1660, 1909, 2075, 2300, 2875, 3320, 3818, 4150, 4600, 5750, 7636, 8300, 9545, 10375, 11500, 15272, 16600, 19090, 20750, 23000, 38180, 41500, 47725, 76360, 83000, 95450, 190900, 238625, 381800, 477250, 954500, 1909000]

約数ペア:

[(1, 1909000), (2, 954500), (4, 477250), (5, 381800), (8, 238625), (10, 190900), (20, 95450), (23, 83000), (25, 76360), (40, 47725), (46, 41500), (50, 38180), (83, 23000), (92, 20750), (100, 19090), (115, 16600), (125, 15272), (166, 11500), (184, 10375), (200, 9545), (230, 8300), (250, 7636), (332, 5750), (415, 4600), (460, 4150), (500, 3818), (575, 3320), (664, 2875), (830, 2300), (920, 2075), (1000, 1909), (1150, 1660)]