644955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:131

約数の個数: 32

約数和(自身を含む): 1136640

約数和(自身を除く): 491685

約数列:

[1, 3, 5, 15, 19, 31, 57, 73, 93, 95, 155, 219, 285, 365, 465, 589, 1095, 1387, 1767, 2263, 2945, 4161, 6789, 6935, 8835, 11315, 20805, 33945, 42997, 128991, 214985, 644955]

約数ペア:

[(1, 644955), (3, 214985), (5, 128991), (15, 42997), (19, 33945), (31, 20805), (57, 11315), (73, 8835), (93, 6935), (95, 6789), (155, 4161), (219, 2945), (285, 2263), (365, 1767), (465, 1387), (589, 1095)]