15842920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 37319040

約数和(自身を除く): 21476120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 151, 172, 215, 244, 302, 305, 344, 430, 488, 604, 610, 755, 860, 1208, 1220, 1510, 1720, 2440, 2623, 3020, 5246, 6040, 6493, 9211, 10492, 12986, 13115, 18422, 20984, 25972, 26230, 32465, 36844, 46055, 51944, 52460, 64930, 73688, 92110, 104920, 129860, 184220, 259720, 368440, 396073, 792146, 1584292, 1980365, 3168584, 3960730, 7921460, 15842920]

約数ペア:

[(1, 15842920), (2, 7921460), (4, 3960730), (5, 3168584), (8, 1980365), (10, 1584292), (20, 792146), (40, 396073), (43, 368440), (61, 259720), (86, 184220), (122, 129860), (151, 104920), (172, 92110), (215, 73688), (244, 64930), (302, 52460), (305, 51944), (344, 46055), (430, 36844), (488, 32465), (604, 26230), (610, 25972), (755, 20984), (860, 18422), (1208, 13115), (1220, 12986), (1510, 10492), (1720, 9211), (2440, 6493), (2623, 6040), (3020, 5246)]