20790796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 22180244

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 811, 884, 986, 1508, 1622, 1972, 3244, 6409, 10543, 12818, 13787, 21086, 23519, 25636, 27574, 42172, 47038, 55148, 94076, 179231, 305747, 358462, 399823, 611494, 716924, 799646, 1222988, 1599292, 5197699, 10395398, 20790796]

約数ペア:

[(1, 20790796), (2, 10395398), (4, 5197699), (13, 1599292), (17, 1222988), (26, 799646), (29, 716924), (34, 611494), (52, 399823), (58, 358462), (68, 305747), (116, 179231), (221, 94076), (377, 55148), (442, 47038), (493, 42172), (754, 27574), (811, 25636), (884, 23519), (986, 21086), (1508, 13787), (1622, 12818), (1972, 10543), (3244, 6409)]