20029724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 43909488

約数和(自身を除く): 23879764

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 97, 143, 194, 209, 247, 286, 361, 388, 418, 494, 572, 722, 836, 988, 1067, 1261, 1444, 1843, 2134, 2522, 2717, 3686, 3971, 4268, 4693, 5044, 5434, 7372, 7942, 9386, 10868, 13871, 15884, 18772, 20273, 23959, 27742, 35017, 40546, 47918, 51623, 55484, 70034, 81092, 95836, 103246, 140068, 206492, 263549, 385187, 455221, 527098, 770374, 910442, 1054196, 1540748, 1820884, 5007431, 10014862, 20029724]

約数ペア:

[(1, 20029724), (2, 10014862), (4, 5007431), (11, 1820884), (13, 1540748), (19, 1054196), (22, 910442), (26, 770374), (38, 527098), (44, 455221), (52, 385187), (76, 263549), (97, 206492), (143, 140068), (194, 103246), (209, 95836), (247, 81092), (286, 70034), (361, 55484), (388, 51623), (418, 47918), (494, 40546), (572, 35017), (722, 27742), (836, 23959), (988, 20273), (1067, 18772), (1261, 15884), (1444, 13871), (1843, 10868), (2134, 9386), (2522, 7942), (2717, 7372), (3686, 5434), (3971, 5044), (4268, 4693)]