19123720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:923

約数の個数: 96

約数和(自身を含む): 54665280

約数和(自身を除く): 35541560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 887, 980, 1078, 1540, 1774, 1960, 2156, 2695, 3080, 3548, 4312, 4435, 5390, 6209, 7096, 8870, 9757, 10780, 12418, 17740, 19514, 21560, 24836, 31045, 35480, 39028, 43463, 48785, 49672, 62090, 68299, 78056, 86926, 97570, 124180, 136598, 173852, 195140, 217315, 248360, 273196, 341495, 347704, 390280, 434630, 478093, 546392, 682990, 869260, 956186, 1365980, 1738520, 1912372, 2390465, 2731960, 3824744, 4780930, 9561860, 19123720]

約数ペア:

[(1, 19123720), (2, 9561860), (4, 4780930), (5, 3824744), (7, 2731960), (8, 2390465), (10, 1912372), (11, 1738520), (14, 1365980), (20, 956186), (22, 869260), (28, 682990), (35, 546392), (40, 478093), (44, 434630), (49, 390280), (55, 347704), (56, 341495), (70, 273196), (77, 248360), (88, 217315), (98, 195140), (110, 173852), (140, 136598), (154, 124180), (196, 97570), (220, 86926), (245, 78056), (280, 68299), (308, 62090), (385, 49672), (392, 48785), (440, 43463), (490, 39028), (539, 35480), (616, 31045), (770, 24836), (887, 21560), (980, 19514), (1078, 17740), (1540, 12418), (1774, 10780), (1960, 9757), (2156, 8870), (2695, 7096), (3080, 6209), (3548, 5390), (4312, 4435)]