80772920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 187799040

約数和(自身を除く): 107026120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 311, 344, 430, 604, 622, 755, 860, 1208, 1244, 1510, 1555, 1720, 2488, 3020, 3110, 6040, 6220, 6493, 12440, 12986, 13373, 25972, 26746, 32465, 46961, 51944, 53492, 64930, 66865, 93922, 106984, 129860, 133730, 187844, 234805, 259720, 267460, 375688, 469610, 534920, 939220, 1878440, 2019323, 4038646, 8077292, 10096615, 16154584, 20193230, 40386460, 80772920]

約数ペア:

[(1, 80772920), (2, 40386460), (4, 20193230), (5, 16154584), (8, 10096615), (10, 8077292), (20, 4038646), (40, 2019323), (43, 1878440), (86, 939220), (151, 534920), (172, 469610), (215, 375688), (302, 267460), (311, 259720), (344, 234805), (430, 187844), (604, 133730), (622, 129860), (755, 106984), (860, 93922), (1208, 66865), (1244, 64930), (1510, 53492), (1555, 51944), (1720, 46961), (2488, 32465), (3020, 26746), (3110, 25972), (6040, 13373), (6220, 12986), (6493, 12440)]