19013960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 50787000

約数和(自身を除く): 31773040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 89, 98, 109, 140, 178, 196, 218, 245, 280, 356, 392, 436, 445, 490, 545, 623, 712, 763, 872, 890, 980, 1090, 1246, 1526, 1780, 1960, 2180, 2492, 3052, 3115, 3560, 3815, 4360, 4361, 4984, 5341, 6104, 6230, 7630, 8722, 9701, 10682, 12460, 15260, 17444, 19402, 21364, 21805, 24920, 26705, 30520, 34888, 38804, 42728, 43610, 48505, 53410, 67907, 77608, 87220, 97010, 106820, 135814, 174440, 194020, 213640, 271628, 339535, 388040, 475349, 543256, 679070, 950698, 1358140, 1901396, 2376745, 2716280, 3802792, 4753490, 9506980, 19013960]

約数ペア:

[(1, 19013960), (2, 9506980), (4, 4753490), (5, 3802792), (7, 2716280), (8, 2376745), (10, 1901396), (14, 1358140), (20, 950698), (28, 679070), (35, 543256), (40, 475349), (49, 388040), (56, 339535), (70, 271628), (89, 213640), (98, 194020), (109, 174440), (140, 135814), (178, 106820), (196, 97010), (218, 87220), (245, 77608), (280, 67907), (356, 53410), (392, 48505), (436, 43610), (445, 42728), (490, 38804), (545, 34888), (623, 30520), (712, 26705), (763, 24920), (872, 21805), (890, 21364), (980, 19402), (1090, 17444), (1246, 15260), (1526, 12460), (1780, 10682), (1960, 9701), (2180, 8722), (2492, 7630), (3052, 6230), (3115, 6104), (3560, 5341), (3815, 4984), (4360, 4361)]