19698580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 50077440

約数和(自身を除く): 30378860

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 55, 68, 85, 92, 110, 115, 170, 187, 220, 229, 230, 253, 340, 374, 391, 458, 460, 506, 748, 782, 916, 935, 1012, 1145, 1265, 1564, 1870, 1955, 2290, 2519, 2530, 3740, 3893, 3910, 4301, 4580, 5038, 5060, 5267, 7786, 7820, 8602, 10076, 10534, 12595, 15572, 17204, 19465, 21068, 21505, 25190, 26335, 38930, 42823, 43010, 50380, 52670, 57937, 77860, 85646, 86020, 89539, 105340, 115874, 171292, 179078, 214115, 231748, 289685, 358156, 428230, 447695, 579370, 856460, 895390, 984929, 1158740, 1790780, 1969858, 3939716, 4924645, 9849290, 19698580]

約数ペア:

[(1, 19698580), (2, 9849290), (4, 4924645), (5, 3939716), (10, 1969858), (11, 1790780), (17, 1158740), (20, 984929), (22, 895390), (23, 856460), (34, 579370), (44, 447695), (46, 428230), (55, 358156), (68, 289685), (85, 231748), (92, 214115), (110, 179078), (115, 171292), (170, 115874), (187, 105340), (220, 89539), (229, 86020), (230, 85646), (253, 77860), (340, 57937), (374, 52670), (391, 50380), (458, 43010), (460, 42823), (506, 38930), (748, 26335), (782, 25190), (916, 21505), (935, 21068), (1012, 19465), (1145, 17204), (1265, 15572), (1564, 12595), (1870, 10534), (1955, 10076), (2290, 8602), (2519, 7820), (2530, 7786), (3740, 5267), (3893, 5060), (3910, 5038), (4301, 4580)]