78451980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2663}}^1$

素因数の和:3166

約数の個数: 48

約数和(自身を含む): 220195584

約数和(自身を除く): 141743604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 982, 1473, 1964, 2455, 2663, 2946, 4910, 5326, 5892, 7365, 7989, 9820, 10652, 13315, 14730, 15978, 26630, 29460, 31956, 39945, 53260, 79890, 159780, 1307533, 2615066, 3922599, 5230132, 6537665, 7845198, 13075330, 15690396, 19612995, 26150660, 39225990, 78451980]

約数ペア:

[(1, 78451980), (2, 39225990), (3, 26150660), (4, 19612995), (5, 15690396), (6, 13075330), (10, 7845198), (12, 6537665), (15, 5230132), (20, 3922599), (30, 2615066), (60, 1307533), (491, 159780), (982, 79890), (1473, 53260), (1964, 39945), (2455, 31956), (2663, 29460), (2946, 26630), (4910, 15978), (5326, 14730), (5892, 13315), (7365, 10652), (7989, 9820)]