31385055

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 58544640

約数和(自身を除く): 27159585

約数列:

[1, 3, 5, 13, 15, 19, 39, 43, 57, 65, 95, 129, 195, 197, 215, 247, 285, 559, 591, 645, 741, 817, 985, 1235, 1677, 2451, 2561, 2795, 2955, 3705, 3743, 4085, 7683, 8385, 8471, 10621, 11229, 12255, 12805, 18715, 25413, 31863, 38415, 42355, 48659, 53105, 56145, 110123, 127065, 145977, 159315, 160949, 243295, 330369, 482847, 550615, 729885, 804745, 1651845, 2092337, 2414235, 6277011, 10461685, 31385055]

約数ペア:

[(1, 31385055), (3, 10461685), (5, 6277011), (13, 2414235), (15, 2092337), (19, 1651845), (39, 804745), (43, 729885), (57, 550615), (65, 482847), (95, 330369), (129, 243295), (195, 160949), (197, 159315), (215, 145977), (247, 127065), (285, 110123), (559, 56145), (591, 53105), (645, 48659), (741, 42355), (817, 38415), (985, 31863), (1235, 25413), (1677, 18715), (2451, 12805), (2561, 12255), (2795, 11229), (2955, 10621), (3705, 8471), (3743, 8385), (4085, 7683)]