7921460

素因数分解:

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

素因数の和:264

約数の個数: 48

約数和(自身を含む): 17415552

約数和(自身を除く): 9494092

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 151, 172, 215, 244, 302, 305, 430, 604, 610, 755, 860, 1220, 1510, 2623, 3020, 5246, 6493, 9211, 10492, 12986, 13115, 18422, 25972, 26230, 32465, 36844, 46055, 52460, 64930, 92110, 129860, 184220, 396073, 792146, 1584292, 1980365, 3960730, 7921460]

約数ペア:

[(1, 7921460), (2, 3960730), (4, 1980365), (5, 1584292), (10, 792146), (20, 396073), (43, 184220), (61, 129860), (86, 92110), (122, 64930), (151, 52460), (172, 46055), (215, 36844), (244, 32465), (302, 26230), (305, 25972), (430, 18422), (604, 13115), (610, 12986), (755, 10492), (860, 9211), (1220, 6493), (1510, 5246), (2623, 3020)]