20304877348

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{11489}}^1$

素因数の和:11705

約数の個数: 72

約数和(自身を含む): 42250844160

約数和(自身を除く): 21945966812

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 127, 142, 196, 254, 284, 497, 508, 889, 994, 1778, 1988, 3479, 3556, 6223, 6958, 9017, 11489, 12446, 13916, 18034, 22978, 24892, 36068, 45956, 63119, 80423, 126238, 160846, 252476, 321692, 441833, 562961, 815719, 883666, 1125922, 1459103, 1631438, 1767332, 2251844, 2918206, 3262876, 5710033, 5836412, 10213721, 11420066, 20427442, 22840132, 39970231, 40854884, 71496047, 79940462, 103596313, 142992094, 159880924, 207192626, 285984188, 414385252, 725174191, 1450348382, 2900696764, 5076219337, 10152438674, 20304877348]

約数ペア:

[(1, 20304877348), (2, 10152438674), (4, 5076219337), (7, 2900696764), (14, 1450348382), (28, 725174191), (49, 414385252), (71, 285984188), (98, 207192626), (127, 159880924), (142, 142992094), (196, 103596313), (254, 79940462), (284, 71496047), (497, 40854884), (508, 39970231), (889, 22840132), (994, 20427442), (1778, 11420066), (1988, 10213721), (3479, 5836412), (3556, 5710033), (6223, 3262876), (6958, 2918206), (9017, 2251844), (11489, 1767332), (12446, 1631438), (13916, 1459103), (18034, 1125922), (22978, 883666), (24892, 815719), (36068, 562961), (45956, 441833), (63119, 321692), (80423, 252476), (126238, 160846)]