18807366968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{947}}^1$

素因数の和:1269

約数の個数: 128

約数和(自身を含む): 41281228800

約数和(自身を除く): 22473861832

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 47, 52, 68, 94, 104, 136, 188, 221, 239, 376, 442, 478, 611, 799, 884, 947, 956, 1222, 1598, 1768, 1894, 1912, 2444, 3107, 3196, 3788, 4063, 4888, 6214, 6392, 7576, 8126, 10387, 11233, 12311, 12428, 16099, 16252, 20774, 22466, 24622, 24856, 32198, 32504, 41548, 44509, 44932, 49244, 52819, 64396, 83096, 89018, 89864, 98488, 105638, 128792, 146029, 178036, 190961, 209287, 211276, 226333, 292058, 356072, 381922, 418574, 422552, 452666, 578617, 584116, 756653, 763844, 837148, 905332, 1157234, 1168232, 1513306, 1527688, 1674296, 1810664, 2314468, 2482493, 2942329, 3026612, 3847661, 4628936, 4964986, 5884658, 6053224, 7695322, 9836489, 9929972, 10637651, 11769316, 15390644, 19672978, 19859944, 21275302, 23538632, 30781288, 39345956, 42550604, 50019593, 78691912, 85101208, 100039186, 138289463, 180840067, 200078372, 276578926, 361680134, 400156744, 553157852, 723360268, 1106315704, 1446720536, 2350920871, 4701841742, 9403683484, 18807366968]

約数ペア:

[(1, 18807366968), (2, 9403683484), (4, 4701841742), (8, 2350920871), (13, 1446720536), (17, 1106315704), (26, 723360268), (34, 553157852), (47, 400156744), (52, 361680134), (68, 276578926), (94, 200078372), (104, 180840067), (136, 138289463), (188, 100039186), (221, 85101208), (239, 78691912), (376, 50019593), (442, 42550604), (478, 39345956), (611, 30781288), (799, 23538632), (884, 21275302), (947, 19859944), (956, 19672978), (1222, 15390644), (1598, 11769316), (1768, 10637651), (1894, 9929972), (1912, 9836489), (2444, 7695322), (3107, 6053224), (3196, 5884658), (3788, 4964986), (4063, 4628936), (4888, 3847661), (6214, 3026612), (6392, 2942329), (7576, 2482493), (8126, 2314468), (10387, 1810664), (11233, 1674296), (12311, 1527688), (12428, 1513306), (16099, 1168232), (16252, 1157234), (20774, 905332), (22466, 837148), (24622, 763844), (24856, 756653), (32198, 584116), (32504, 578617), (41548, 452666), (44509, 422552), (44932, 418574), (49244, 381922), (52819, 356072), (64396, 292058), (83096, 226333), (89018, 211276), (89864, 209287), (98488, 190961), (105638, 178036), (128792, 146029)]