20510388

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^2\times {\mathrm{359}}^1$

素因数の和:418

約数の個数: 72

約数和(自身を含む): 55742400

約数和(自身を除く): 35232012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 359, 414, 529, 621, 718, 828, 1058, 1077, 1242, 1436, 1587, 2116, 2154, 2484, 3174, 3231, 4308, 4761, 6348, 6462, 8257, 9522, 9693, 12924, 14283, 16514, 19044, 19386, 24771, 28566, 33028, 38772, 49542, 57132, 74313, 99084, 148626, 189911, 222939, 297252, 379822, 445878, 569733, 759644, 891756, 1139466, 1709199, 2278932, 3418398, 5127597, 6836796, 10255194, 20510388]

約数ペア:

[(1, 20510388), (2, 10255194), (3, 6836796), (4, 5127597), (6, 3418398), (9, 2278932), (12, 1709199), (18, 1139466), (23, 891756), (27, 759644), (36, 569733), (46, 445878), (54, 379822), (69, 297252), (92, 222939), (108, 189911), (138, 148626), (207, 99084), (276, 74313), (359, 57132), (414, 49542), (529, 38772), (621, 33028), (718, 28566), (828, 24771), (1058, 19386), (1077, 19044), (1242, 16514), (1436, 14283), (1587, 12924), (2116, 9693), (2154, 9522), (2484, 8257), (3174, 6462), (3231, 6348), (4308, 4761)]