20074955240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1\times {\mathrm{941}}^1$

素因数の和:1335

約数の個数: 128

約数和(自身を含む): 48436509600

約数和(自身を除く): 28361554360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 170, 229, 274, 340, 458, 548, 680, 685, 916, 941, 1096, 1145, 1370, 1832, 1882, 2290, 2329, 2740, 3764, 3893, 4580, 4658, 4705, 5480, 7528, 7786, 9160, 9316, 9410, 11645, 15572, 15997, 18632, 18820, 19465, 23290, 31144, 31373, 31994, 37640, 38930, 46580, 62746, 63988, 77860, 79985, 93160, 125492, 127976, 128917, 155720, 156865, 159970, 215489, 250984, 257834, 313730, 319940, 430978, 515668, 533341, 627460, 639880, 644585, 861956, 1031336, 1066682, 1077445, 1254920, 1289170, 1723912, 2133364, 2154890, 2191589, 2578340, 2666705, 3663313, 4266728, 4309780, 4383178, 5156680, 5333410, 7326626, 8619560, 8766356, 10666820, 10957945, 14653252, 17532712, 18316565, 21333640, 21915890, 29306504, 29521993, 36633130, 43831780, 59043986, 73266260, 87663560, 118087972, 146532520, 147609965, 236175944, 295219930, 501873881, 590439860, 1003747762, 1180879720, 2007495524, 2509369405, 4014991048, 5018738810, 10037477620, 20074955240]

約数ペア:

[(1, 20074955240), (2, 10037477620), (4, 5018738810), (5, 4014991048), (8, 2509369405), (10, 2007495524), (17, 1180879720), (20, 1003747762), (34, 590439860), (40, 501873881), (68, 295219930), (85, 236175944), (136, 147609965), (137, 146532520), (170, 118087972), (229, 87663560), (274, 73266260), (340, 59043986), (458, 43831780), (548, 36633130), (680, 29521993), (685, 29306504), (916, 21915890), (941, 21333640), (1096, 18316565), (1145, 17532712), (1370, 14653252), (1832, 10957945), (1882, 10666820), (2290, 8766356), (2329, 8619560), (2740, 7326626), (3764, 5333410), (3893, 5156680), (4580, 4383178), (4658, 4309780), (4705, 4266728), (5480, 3663313), (7528, 2666705), (7786, 2578340), (9160, 2191589), (9316, 2154890), (9410, 2133364), (11645, 1723912), (15572, 1289170), (15997, 1254920), (18632, 1077445), (18820, 1066682), (19465, 1031336), (23290, 861956), (31144, 644585), (31373, 639880), (31994, 627460), (37640, 533341), (38930, 515668), (46580, 430978), (62746, 319940), (63988, 313730), (77860, 257834), (79985, 250984), (93160, 215489), (125492, 159970), (127976, 156865), (128917, 155720)]