180398920

素因数分解:

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

素因数の和:124

約数の個数: 144

約数和(自身を含む): 476699580

約数和(自身を除く): 296300660

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, 190, 247, 248, 260, 310, 361, 380, 403, 494, 520, 589, 620, 722, 760, 806, 961, 988, 1178, 1235, 1240, 1444, 1612, 1805, 1922, 1976, 2015, 2356, 2470, 2888, 2945, 3224, 3610, 3844, 4030, 4693, 4712, 4805, 4940, 5890, 7220, 7657, 7688, 8060, 9386, 9610, 9880, 11191, 11780, 12493, 14440, 15314, 16120, 18259, 18772, 19220, 22382, 23465, 23560, 24986, 30628, 36518, 37544, 38285, 38440, 44764, 46930, 49972, 55955, 61256, 62465, 73036, 76570, 89528, 91295, 93860, 99944, 111910, 124930, 145483, 146072, 153140, 182590, 187720, 223820, 237367, 249860, 290966, 306280, 346921, 365180, 447640, 474734, 499720, 581932, 693842, 727415, 730360, 949468, 1163864, 1186835, 1387684, 1454830, 1734605, 1898936, 2373670, 2775368, 2909660, 3469210, 4509973, 4747340, 5819320, 6938420, 9019946, 9494680, 13876840, 18039892, 22549865, 36079784, 45099730, 90199460, 180398920]

約数ペア:

[(1, 180398920), (2, 90199460), (4, 45099730), (5, 36079784), (8, 22549865), (10, 18039892), (13, 13876840), (19, 9494680), (20, 9019946), (26, 6938420), (31, 5819320), (38, 4747340), (40, 4509973), (52, 3469210), (62, 2909660), (65, 2775368), (76, 2373670), (95, 1898936), (104, 1734605), (124, 1454830), (130, 1387684), (152, 1186835), (155, 1163864), (190, 949468), (247, 730360), (248, 727415), (260, 693842), (310, 581932), (361, 499720), (380, 474734), (403, 447640), (494, 365180), (520, 346921), (589, 306280), (620, 290966), (722, 249860), (760, 237367), (806, 223820), (961, 187720), (988, 182590), (1178, 153140), (1235, 146072), (1240, 145483), (1444, 124930), (1612, 111910), (1805, 99944), (1922, 93860), (1976, 91295), (2015, 89528), (2356, 76570), (2470, 73036), (2888, 62465), (2945, 61256), (3224, 55955), (3610, 49972), (3844, 46930), (4030, 44764), (4693, 38440), (4712, 38285), (4805, 37544), (4940, 36518), (5890, 30628), (7220, 24986), (7657, 23560), (7688, 23465), (8060, 22382), (9386, 19220), (9610, 18772), (9880, 18259), (11191, 16120), (11780, 15314), (12493, 14440)]