19721670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 49268736

約数和(自身を除く): 29547066

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 71, 94, 141, 142, 197, 213, 235, 282, 355, 394, 426, 470, 591, 705, 710, 985, 1065, 1182, 1410, 1970, 2130, 2955, 3337, 5910, 6674, 9259, 10011, 13987, 16685, 18518, 20022, 27777, 27974, 33370, 41961, 46295, 50055, 55554, 69935, 83922, 92590, 100110, 138885, 139870, 209805, 277770, 419610, 657389, 1314778, 1972167, 3286945, 3944334, 6573890, 9860835, 19721670]

約数ペア:

[(1, 19721670), (2, 9860835), (3, 6573890), (5, 3944334), (6, 3286945), (10, 1972167), (15, 1314778), (30, 657389), (47, 419610), (71, 277770), (94, 209805), (141, 139870), (142, 138885), (197, 100110), (213, 92590), (235, 83922), (282, 69935), (355, 55554), (394, 50055), (426, 46295), (470, 41961), (591, 33370), (705, 27974), (710, 27777), (985, 20022), (1065, 18518), (1182, 16685), (1410, 13987), (1970, 10011), (2130, 9259), (2955, 6674), (3337, 5910)]