20121455068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{121721}}^1$

素因数の和:121783

約数の個数: 72

約数和(自身を含む): 43945537104

約数和(自身を除く): 23824082036

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 289, 374, 442, 572, 578, 748, 884, 1156, 2431, 3179, 3757, 4862, 6358, 7514, 9724, 12716, 15028, 41327, 82654, 121721, 165308, 243442, 486884, 1338931, 1582373, 2069257, 2677862, 3164746, 4138514, 5355724, 6329492, 8277028, 17406103, 22761827, 26900341, 34812206, 35177369, 45523654, 53800682, 69624412, 70354738, 91047308, 107601364, 140709476, 295903751, 386951059, 457305797, 591807502, 773902118, 914611594, 1183615004, 1547804236, 1829223188, 5030363767, 10060727534, 20121455068]

約数ペア:

[(1, 20121455068), (2, 10060727534), (4, 5030363767), (11, 1829223188), (13, 1547804236), (17, 1183615004), (22, 914611594), (26, 773902118), (34, 591807502), (44, 457305797), (52, 386951059), (68, 295903751), (143, 140709476), (187, 107601364), (221, 91047308), (286, 70354738), (289, 69624412), (374, 53800682), (442, 45523654), (572, 35177369), (578, 34812206), (748, 26900341), (884, 22761827), (1156, 17406103), (2431, 8277028), (3179, 6329492), (3757, 5355724), (4862, 4138514), (6358, 3164746), (7514, 2677862), (9724, 2069257), (12716, 1582373), (15028, 1338931), (41327, 486884), (82654, 243442), (121721, 165308)]