78564860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1973}}^1$

素因数の和:2174

約数の個数: 48

約数和(自身を含む): 181071072

約数和(自身を除く): 102506212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1973, 1991, 3620, 3946, 3982, 7892, 7964, 9865, 9955, 19730, 19910, 21703, 39460, 39820, 43406, 86812, 108515, 217030, 357113, 434060, 714226, 1428452, 1785565, 3571130, 3928243, 7142260, 7856486, 15712972, 19641215, 39282430, 78564860]

約数ペア:

[(1, 78564860), (2, 39282430), (4, 19641215), (5, 15712972), (10, 7856486), (11, 7142260), (20, 3928243), (22, 3571130), (44, 1785565), (55, 1428452), (110, 714226), (181, 434060), (220, 357113), (362, 217030), (724, 108515), (905, 86812), (1810, 43406), (1973, 39820), (1991, 39460), (3620, 21703), (3946, 19910), (3982, 19730), (7892, 9955), (7964, 9865)]