81818480

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8053}}^1$

素因数の和:8193

約数の個数: 40

約数和(自身を含む): 191749632

約数和(自身を除く): 109931152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 8053, 10160, 16106, 32212, 40265, 64424, 80530, 128848, 161060, 322120, 644240, 1022731, 2045462, 4090924, 5113655, 8181848, 10227310, 16363696, 20454620, 40909240, 81818480]

約数ペア:

[(1, 81818480), (2, 40909240), (4, 20454620), (5, 16363696), (8, 10227310), (10, 8181848), (16, 5113655), (20, 4090924), (40, 2045462), (80, 1022731), (127, 644240), (254, 322120), (508, 161060), (635, 128848), (1016, 80530), (1270, 64424), (2032, 40265), (2540, 32212), (5080, 16106), (8053, 10160)]