19131860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 48384000

約数和(自身を除く): 29252140

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 23, 38, 44, 46, 55, 76, 92, 95, 110, 115, 190, 199, 209, 220, 230, 253, 380, 398, 418, 437, 460, 506, 796, 836, 874, 995, 1012, 1045, 1265, 1748, 1990, 2090, 2185, 2189, 2530, 3781, 3980, 4180, 4370, 4378, 4577, 4807, 5060, 7562, 8740, 8756, 9154, 9614, 10945, 15124, 18308, 18905, 19228, 21890, 22885, 24035, 37810, 41591, 43780, 45770, 48070, 50347, 75620, 83182, 86963, 91540, 96140, 100694, 166364, 173926, 201388, 207955, 251735, 347852, 415910, 434815, 503470, 831820, 869630, 956593, 1006940, 1739260, 1913186, 3826372, 4782965, 9565930, 19131860]

約数ペア:

[(1, 19131860), (2, 9565930), (4, 4782965), (5, 3826372), (10, 1913186), (11, 1739260), (19, 1006940), (20, 956593), (22, 869630), (23, 831820), (38, 503470), (44, 434815), (46, 415910), (55, 347852), (76, 251735), (92, 207955), (95, 201388), (110, 173926), (115, 166364), (190, 100694), (199, 96140), (209, 91540), (220, 86963), (230, 83182), (253, 75620), (380, 50347), (398, 48070), (418, 45770), (437, 43780), (460, 41591), (506, 37810), (796, 24035), (836, 22885), (874, 21890), (995, 19228), (1012, 18905), (1045, 18308), (1265, 15124), (1748, 10945), (1990, 9614), (2090, 9154), (2185, 8756), (2189, 8740), (2530, 7562), (3781, 5060), (3980, 4807), (4180, 4577), (4370, 4378)]