19872372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 51649920

約数和(自身を除く): 31777548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 169, 239, 246, 338, 478, 492, 507, 533, 676, 717, 956, 1014, 1066, 1434, 1599, 2028, 2132, 2868, 3107, 3198, 6214, 6396, 6929, 9321, 9799, 12428, 13858, 18642, 19598, 20787, 27716, 29397, 37284, 39196, 40391, 41574, 58794, 80782, 83148, 117588, 121173, 127387, 161564, 242346, 254774, 382161, 484692, 509548, 764322, 1528644, 1656031, 3312062, 4968093, 6624124, 9936186, 19872372]

約数ペア:

[(1, 19872372), (2, 9936186), (3, 6624124), (4, 4968093), (6, 3312062), (12, 1656031), (13, 1528644), (26, 764322), (39, 509548), (41, 484692), (52, 382161), (78, 254774), (82, 242346), (123, 161564), (156, 127387), (164, 121173), (169, 117588), (239, 83148), (246, 80782), (338, 58794), (478, 41574), (492, 40391), (507, 39196), (533, 37284), (676, 29397), (717, 27716), (956, 20787), (1014, 19598), (1066, 18642), (1434, 13858), (1599, 12428), (2028, 9799), (2132, 9321), (2868, 6929), (3107, 6396), (3198, 6214)]