20731034870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{523}}^1\times {\mathrm{1013}}^1$

素因数の和:1606

約数の個数: 128

約数和(自身を含む): 47131628544

約数和(自身を除く): 26400593674

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 43, 65, 70, 86, 91, 130, 182, 215, 301, 430, 455, 523, 559, 602, 910, 1013, 1046, 1118, 1505, 2026, 2615, 2795, 3010, 3661, 3913, 5065, 5230, 5590, 6799, 7091, 7322, 7826, 10130, 13169, 13598, 14182, 18305, 19565, 22489, 26338, 33995, 35455, 36610, 39130, 43559, 44978, 47593, 65845, 67990, 70910, 87118, 92183, 95186, 112445, 131690, 157423, 184366, 217795, 224890, 237965, 292357, 304913, 314846, 435590, 460915, 475930, 529799, 566267, 584714, 609826, 787115, 921830, 1059598, 1132534, 1461785, 1524565, 1574230, 2046499, 2648995, 2831335, 2923570, 3049130, 3708593, 3963869, 4092998, 5297990, 5662670, 6887387, 7417186, 7927738, 10232495, 13774774, 18542965, 19819345, 20464990, 22781357, 34436935, 37085930, 39638690, 45562714, 48211709, 68873870, 96423418, 113906785, 159469499, 227813570, 241058545, 296157641, 318938998, 482117090, 592315282, 797347495, 1480788205, 1594694990, 2073103487, 2961576410, 4146206974, 10365517435, 20731034870]

約数ペア:

[(1, 20731034870), (2, 10365517435), (5, 4146206974), (7, 2961576410), (10, 2073103487), (13, 1594694990), (14, 1480788205), (26, 797347495), (35, 592315282), (43, 482117090), (65, 318938998), (70, 296157641), (86, 241058545), (91, 227813570), (130, 159469499), (182, 113906785), (215, 96423418), (301, 68873870), (430, 48211709), (455, 45562714), (523, 39638690), (559, 37085930), (602, 34436935), (910, 22781357), (1013, 20464990), (1046, 19819345), (1118, 18542965), (1505, 13774774), (2026, 10232495), (2615, 7927738), (2795, 7417186), (3010, 6887387), (3661, 5662670), (3913, 5297990), (5065, 4092998), (5230, 3963869), (5590, 3708593), (6799, 3049130), (7091, 2923570), (7322, 2831335), (7826, 2648995), (10130, 2046499), (13169, 1574230), (13598, 1524565), (14182, 1461785), (18305, 1132534), (19565, 1059598), (22489, 921830), (26338, 787115), (33995, 609826), (35455, 584714), (36610, 566267), (39130, 529799), (43559, 475930), (44978, 460915), (47593, 435590), (65845, 314846), (67990, 304913), (70910, 292357), (87118, 237965), (92183, 224890), (95186, 217795), (112445, 184366), (131690, 157423)]