81634840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5501}}^1$

素因数の和:5572

約数の個数: 64

約数和(自身を含む): 213917760

約数和(自身を除く): 132282920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2120, 2968, 3710, 5501, 7420, 11002, 14840, 22004, 27505, 38507, 44008, 55010, 77014, 110020, 154028, 192535, 220040, 291553, 308056, 385070, 583106, 770140, 1166212, 1457765, 1540280, 2040871, 2332424, 2915530, 4081742, 5831060, 8163484, 10204355, 11662120, 16326968, 20408710, 40817420, 81634840]

約数ペア:

[(1, 81634840), (2, 40817420), (4, 20408710), (5, 16326968), (7, 11662120), (8, 10204355), (10, 8163484), (14, 5831060), (20, 4081742), (28, 2915530), (35, 2332424), (40, 2040871), (53, 1540280), (56, 1457765), (70, 1166212), (106, 770140), (140, 583106), (212, 385070), (265, 308056), (280, 291553), (371, 220040), (424, 192535), (530, 154028), (742, 110020), (1060, 77014), (1484, 55010), (1855, 44008), (2120, 38507), (2968, 27505), (3710, 22004), (5501, 14840), (7420, 11002)]