123430840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 327094200

約数和(自身を除く): 203663360

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 169, 190, 247, 248, 260, 310, 338, 380, 403, 494, 520, 589, 620, 676, 760, 806, 845, 961, 988, 1178, 1235, 1240, 1352, 1612, 1690, 1922, 1976, 2015, 2356, 2470, 2945, 3211, 3224, 3380, 3844, 4030, 4712, 4805, 4940, 5239, 5890, 6422, 6760, 7657, 7688, 8060, 9610, 9880, 10478, 11780, 12493, 12844, 15314, 16055, 16120, 18259, 19220, 20956, 23560, 24986, 25688, 26195, 30628, 32110, 36518, 38285, 38440, 41912, 49972, 52390, 61256, 62465, 64220, 73036, 76570, 91295, 99541, 99944, 104780, 124930, 128440, 146072, 153140, 162409, 182590, 199082, 209560, 237367, 249860, 306280, 324818, 365180, 398164, 474734, 497705, 499720, 649636, 730360, 796328, 812045, 949468, 995410, 1186835, 1299272, 1624090, 1898936, 1990820, 2373670, 3085771, 3248180, 3981640, 4747340, 6171542, 6496360, 9494680, 12343084, 15428855, 24686168, 30857710, 61715420, 123430840]

約数ペア:

[(1, 123430840), (2, 61715420), (4, 30857710), (5, 24686168), (8, 15428855), (10, 12343084), (13, 9494680), (19, 6496360), (20, 6171542), (26, 4747340), (31, 3981640), (38, 3248180), (40, 3085771), (52, 2373670), (62, 1990820), (65, 1898936), (76, 1624090), (95, 1299272), (104, 1186835), (124, 995410), (130, 949468), (152, 812045), (155, 796328), (169, 730360), (190, 649636), (247, 499720), (248, 497705), (260, 474734), (310, 398164), (338, 365180), (380, 324818), (403, 306280), (494, 249860), (520, 237367), (589, 209560), (620, 199082), (676, 182590), (760, 162409), (806, 153140), (845, 146072), (961, 128440), (988, 124930), (1178, 104780), (1235, 99944), (1240, 99541), (1352, 91295), (1612, 76570), (1690, 73036), (1922, 64220), (1976, 62465), (2015, 61256), (2356, 52390), (2470, 49972), (2945, 41912), (3211, 38440), (3224, 38285), (3380, 36518), (3844, 32110), (4030, 30628), (4712, 26195), (4805, 25688), (4940, 24986), (5239, 23560), (5890, 20956), (6422, 19220), (6760, 18259), (7657, 16120), (7688, 16055), (8060, 15314), (9610, 12844), (9880, 12493), (10478, 11780)]