19504000

素因数分解:

$2^7\times 5^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 128

約数和(自身を含む): 51554880

約数和(自身を除く): 32050880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 53, 64, 80, 92, 100, 106, 115, 125, 128, 160, 184, 200, 212, 230, 250, 265, 320, 368, 400, 424, 460, 500, 530, 575, 640, 736, 800, 848, 920, 1000, 1060, 1150, 1219, 1325, 1472, 1600, 1696, 1840, 2000, 2120, 2300, 2438, 2650, 2875, 2944, 3200, 3392, 3680, 4000, 4240, 4600, 4876, 5300, 5750, 6095, 6625, 6784, 7360, 8000, 8480, 9200, 9752, 10600, 11500, 12190, 13250, 14720, 16000, 16960, 18400, 19504, 21200, 23000, 24380, 26500, 30475, 33920, 36800, 39008, 42400, 46000, 48760, 53000, 60950, 73600, 78016, 84800, 92000, 97520, 106000, 121900, 152375, 156032, 169600, 184000, 195040, 212000, 243800, 304750, 368000, 390080, 424000, 487600, 609500, 780160, 848000, 975200, 1219000, 1950400, 2438000, 3900800, 4876000, 9752000, 19504000]

約数ペア:

[(1, 19504000), (2, 9752000), (4, 4876000), (5, 3900800), (8, 2438000), (10, 1950400), (16, 1219000), (20, 975200), (23, 848000), (25, 780160), (32, 609500), (40, 487600), (46, 424000), (50, 390080), (53, 368000), (64, 304750), (80, 243800), (92, 212000), (100, 195040), (106, 184000), (115, 169600), (125, 156032), (128, 152375), (160, 121900), (184, 106000), (200, 97520), (212, 92000), (230, 84800), (250, 78016), (265, 73600), (320, 60950), (368, 53000), (400, 48760), (424, 46000), (460, 42400), (500, 39008), (530, 36800), (575, 33920), (640, 30475), (736, 26500), (800, 24380), (848, 23000), (920, 21200), (1000, 19504), (1060, 18400), (1150, 16960), (1219, 16000), (1325, 14720), (1472, 13250), (1600, 12190), (1696, 11500), (1840, 10600), (2000, 9752), (2120, 9200), (2300, 8480), (2438, 8000), (2650, 7360), (2875, 6784), (2944, 6625), (3200, 6095), (3392, 5750), (3680, 5300), (4000, 4876), (4240, 4600)]