19201000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 55560960

約数和(自身を除く): 36359960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 125, 130, 140, 175, 182, 200, 211, 250, 260, 280, 325, 350, 364, 422, 455, 500, 520, 650, 700, 728, 844, 875, 910, 1000, 1055, 1300, 1400, 1477, 1625, 1688, 1750, 1820, 2110, 2275, 2600, 2743, 2954, 3250, 3500, 3640, 4220, 4550, 5275, 5486, 5908, 6500, 7000, 7385, 8440, 9100, 10550, 10972, 11375, 11816, 13000, 13715, 14770, 18200, 19201, 21100, 21944, 22750, 26375, 27430, 29540, 36925, 38402, 42200, 45500, 52750, 54860, 59080, 68575, 73850, 76804, 91000, 96005, 105500, 109720, 137150, 147700, 153608, 184625, 192010, 211000, 274300, 295400, 342875, 369250, 384020, 480025, 548600, 685750, 738500, 768040, 960050, 1371500, 1477000, 1920100, 2400125, 2743000, 3840200, 4800250, 9600500, 19201000]

約数ペア:

[(1, 19201000), (2, 9600500), (4, 4800250), (5, 3840200), (7, 2743000), (8, 2400125), (10, 1920100), (13, 1477000), (14, 1371500), (20, 960050), (25, 768040), (26, 738500), (28, 685750), (35, 548600), (40, 480025), (50, 384020), (52, 369250), (56, 342875), (65, 295400), (70, 274300), (91, 211000), (100, 192010), (104, 184625), (125, 153608), (130, 147700), (140, 137150), (175, 109720), (182, 105500), (200, 96005), (211, 91000), (250, 76804), (260, 73850), (280, 68575), (325, 59080), (350, 54860), (364, 52750), (422, 45500), (455, 42200), (500, 38402), (520, 36925), (650, 29540), (700, 27430), (728, 26375), (844, 22750), (875, 21944), (910, 21100), (1000, 19201), (1055, 18200), (1300, 14770), (1400, 13715), (1477, 13000), (1625, 11816), (1688, 11375), (1750, 10972), (1820, 10550), (2110, 9100), (2275, 8440), (2600, 7385), (2743, 7000), (2954, 6500), (3250, 5908), (3500, 5486), (3640, 5275), (4220, 4550)]