20123992070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:886

約数の個数: 128

約数和(自身を含む): 45071050752

約数和(自身を除く): 24947058682

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 211, 311, 337, 422, 455, 622, 674, 910, 1055, 1477, 1555, 1685, 2110, 2177, 2359, 2743, 2954, 3110, 3370, 4043, 4354, 4381, 4718, 5486, 7385, 8086, 8762, 10885, 11795, 13715, 14770, 19201, 20215, 21770, 21905, 23590, 27430, 28301, 30667, 38402, 40430, 43810, 56602, 61334, 65621, 71107, 96005, 104807, 131242, 141505, 142214, 153335, 192010, 209614, 283010, 306670, 328105, 355535, 459347, 497749, 524035, 656210, 711070, 733649, 853073, 918694, 924391, 995498, 1048070, 1362491, 1467298, 1706146, 1848782, 2296735, 2488745, 2724982, 3668245, 4265365, 4593470, 4621955, 4977490, 5971511, 6470737, 6812455, 7336490, 8530730, 9243910, 9537437, 11943022, 12941474, 13624910, 19074874, 22114277, 29857555, 32353685, 44228554, 47687185, 59715110, 64707370, 95374370, 110571385, 154799939, 221142770, 287485601, 309599878, 574971202, 773999695, 1437428005, 1547999390, 2012399207, 2874856010, 4024798414, 10061996035, 20123992070]

約数ペア:

[(1, 20123992070), (2, 10061996035), (5, 4024798414), (7, 2874856010), (10, 2012399207), (13, 1547999390), (14, 1437428005), (26, 773999695), (35, 574971202), (65, 309599878), (70, 287485601), (91, 221142770), (130, 154799939), (182, 110571385), (211, 95374370), (311, 64707370), (337, 59715110), (422, 47687185), (455, 44228554), (622, 32353685), (674, 29857555), (910, 22114277), (1055, 19074874), (1477, 13624910), (1555, 12941474), (1685, 11943022), (2110, 9537437), (2177, 9243910), (2359, 8530730), (2743, 7336490), (2954, 6812455), (3110, 6470737), (3370, 5971511), (4043, 4977490), (4354, 4621955), (4381, 4593470), (4718, 4265365), (5486, 3668245), (7385, 2724982), (8086, 2488745), (8762, 2296735), (10885, 1848782), (11795, 1706146), (13715, 1467298), (14770, 1362491), (19201, 1048070), (20215, 995498), (21770, 924391), (21905, 918694), (23590, 853073), (27430, 733649), (28301, 711070), (30667, 656210), (38402, 524035), (40430, 497749), (43810, 459347), (56602, 355535), (61334, 328105), (65621, 306670), (71107, 283010), (96005, 209614), (104807, 192010), (131242, 153335), (141505, 142214)]