19688000

素因数分解:

$2^6\times 5^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 112

約数和(自身を含む): 51352704

約数和(自身を除く): 31664704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 107, 115, 125, 160, 184, 200, 214, 230, 250, 320, 368, 400, 428, 460, 500, 535, 575, 736, 800, 856, 920, 1000, 1070, 1150, 1472, 1600, 1712, 1840, 2000, 2140, 2300, 2461, 2675, 2875, 3424, 3680, 4000, 4280, 4600, 4922, 5350, 5750, 6848, 7360, 8000, 8560, 9200, 9844, 10700, 11500, 12305, 13375, 17120, 18400, 19688, 21400, 23000, 24610, 26750, 34240, 36800, 39376, 42800, 46000, 49220, 53500, 61525, 78752, 85600, 92000, 98440, 107000, 123050, 157504, 171200, 184000, 196880, 214000, 246100, 307625, 393760, 428000, 492200, 615250, 787520, 856000, 984400, 1230500, 1968800, 2461000, 3937600, 4922000, 9844000, 19688000]

約数ペア:

[(1, 19688000), (2, 9844000), (4, 4922000), (5, 3937600), (8, 2461000), (10, 1968800), (16, 1230500), (20, 984400), (23, 856000), (25, 787520), (32, 615250), (40, 492200), (46, 428000), (50, 393760), (64, 307625), (80, 246100), (92, 214000), (100, 196880), (107, 184000), (115, 171200), (125, 157504), (160, 123050), (184, 107000), (200, 98440), (214, 92000), (230, 85600), (250, 78752), (320, 61525), (368, 53500), (400, 49220), (428, 46000), (460, 42800), (500, 39376), (535, 36800), (575, 34240), (736, 26750), (800, 24610), (856, 23000), (920, 21400), (1000, 19688), (1070, 18400), (1150, 17120), (1472, 13375), (1600, 12305), (1712, 11500), (1840, 10700), (2000, 9844), (2140, 9200), (2300, 8560), (2461, 8000), (2675, 7360), (2875, 6848), (3424, 5750), (3680, 5350), (4000, 4922), (4280, 4600)]