320401845

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5431}}^1$

素因数の和:5487

約数の個数: 64

約数和(自身を含む): 625766400

約数和(自身を除く): 305364555

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 45, 57, 69, 95, 115, 135, 171, 207, 285, 345, 437, 513, 621, 855, 1035, 1311, 2185, 2565, 3105, 3933, 5431, 6555, 11799, 16293, 19665, 27155, 48879, 58995, 81465, 103189, 124913, 146637, 244395, 309567, 374739, 515945, 624565, 733185, 928701, 1124217, 1547835, 1873695, 2373347, 2786103, 3372651, 4643505, 5621085, 7120041, 11866735, 13930515, 16863255, 21360123, 35600205, 64080369, 106800615, 320401845]

約数ペア:

[(1, 320401845), (3, 106800615), (5, 64080369), (9, 35600205), (15, 21360123), (19, 16863255), (23, 13930515), (27, 11866735), (45, 7120041), (57, 5621085), (69, 4643505), (95, 3372651), (115, 2786103), (135, 2373347), (171, 1873695), (207, 1547835), (285, 1124217), (345, 928701), (437, 733185), (513, 624565), (621, 515945), (855, 374739), (1035, 309567), (1311, 244395), (2185, 146637), (2565, 124913), (3105, 103189), (3933, 81465), (5431, 58995), (6555, 48879), (11799, 27155), (16293, 19665)]