20907460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 53932032

約数和(自身を除く): 33024572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 43, 46, 70, 86, 92, 115, 140, 151, 161, 172, 215, 230, 301, 302, 322, 430, 460, 602, 604, 644, 755, 805, 860, 989, 1057, 1204, 1505, 1510, 1610, 1978, 2114, 3010, 3020, 3220, 3473, 3956, 4228, 4945, 5285, 6020, 6493, 6923, 6946, 9890, 10570, 12986, 13846, 13892, 17365, 19780, 21140, 24311, 25972, 27692, 32465, 34615, 34730, 45451, 48622, 64930, 69230, 69460, 90902, 97244, 121555, 129860, 138460, 149339, 181804, 227255, 243110, 298678, 454510, 486220, 597356, 746695, 909020, 1045373, 1493390, 2090746, 2986780, 4181492, 5226865, 10453730, 20907460]

約数ペア:

[(1, 20907460), (2, 10453730), (4, 5226865), (5, 4181492), (7, 2986780), (10, 2090746), (14, 1493390), (20, 1045373), (23, 909020), (28, 746695), (35, 597356), (43, 486220), (46, 454510), (70, 298678), (86, 243110), (92, 227255), (115, 181804), (140, 149339), (151, 138460), (161, 129860), (172, 121555), (215, 97244), (230, 90902), (301, 69460), (302, 69230), (322, 64930), (430, 48622), (460, 45451), (602, 34730), (604, 34615), (644, 32465), (755, 27692), (805, 25972), (860, 24311), (989, 21140), (1057, 19780), (1204, 17365), (1505, 13892), (1510, 13846), (1610, 12986), (1978, 10570), (2114, 9890), (3010, 6946), (3020, 6923), (3220, 6493), (3473, 6020), (3956, 5285), (4228, 4945)]