19498020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 38562780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 71, 92, 115, 138, 142, 199, 213, 230, 276, 284, 345, 355, 398, 426, 460, 597, 690, 710, 796, 852, 995, 1065, 1194, 1380, 1420, 1633, 1990, 2130, 2388, 2985, 3266, 3980, 4260, 4577, 4899, 5970, 6532, 8165, 9154, 9798, 11940, 13731, 14129, 16330, 18308, 19596, 22885, 24495, 27462, 28258, 32660, 42387, 45770, 48990, 54924, 56516, 68655, 70645, 84774, 91540, 97980, 137310, 141290, 169548, 211935, 274620, 282580, 324967, 423870, 649934, 847740, 974901, 1299868, 1624835, 1949802, 3249670, 3899604, 4874505, 6499340, 9749010, 19498020]

約数ペア:

[(1, 19498020), (2, 9749010), (3, 6499340), (4, 4874505), (5, 3899604), (6, 3249670), (10, 1949802), (12, 1624835), (15, 1299868), (20, 974901), (23, 847740), (30, 649934), (46, 423870), (60, 324967), (69, 282580), (71, 274620), (92, 211935), (115, 169548), (138, 141290), (142, 137310), (199, 97980), (213, 91540), (230, 84774), (276, 70645), (284, 68655), (345, 56516), (355, 54924), (398, 48990), (426, 45770), (460, 42387), (597, 32660), (690, 28258), (710, 27462), (796, 24495), (852, 22885), (995, 19596), (1065, 18308), (1194, 16330), (1380, 14129), (1420, 13731), (1633, 11940), (1990, 9798), (2130, 9154), (2388, 8165), (2985, 6532), (3266, 5970), (3980, 4899), (4260, 4577)]