247738690

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{3943}}^1$

素因数の和:4114

約数の個数: 32

約数和(自身を含む): 457756416

約数和(自身を除く): 210017726

約数列:

[1, 2, 5, 10, 61, 103, 122, 206, 305, 515, 610, 1030, 3943, 6283, 7886, 12566, 19715, 31415, 39430, 62830, 240523, 406129, 481046, 812258, 1202615, 2030645, 2405230, 4061290, 24773869, 49547738, 123869345, 247738690]

約数ペア:

[(1, 247738690), (2, 123869345), (5, 49547738), (10, 24773869), (61, 4061290), (103, 2405230), (122, 2030645), (206, 1202615), (305, 812258), (515, 481046), (610, 406129), (1030, 240523), (3943, 62830), (6283, 39430), (7886, 31415), (12566, 19715)]