161765780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{2083}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 371818944

約数和(自身を除く): 210053164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 353, 706, 1412, 1765, 2083, 3530, 3883, 4166, 7060, 7766, 8332, 10415, 15532, 19415, 20830, 22913, 38830, 41660, 45826, 77660, 91652, 114565, 229130, 458260, 735299, 1470598, 2941196, 3676495, 7352990, 8088289, 14705980, 16176578, 32353156, 40441445, 80882890, 161765780]

約数ペア:

[(1, 161765780), (2, 80882890), (4, 40441445), (5, 32353156), (10, 16176578), (11, 14705980), (20, 8088289), (22, 7352990), (44, 3676495), (55, 2941196), (110, 1470598), (220, 735299), (353, 458260), (706, 229130), (1412, 114565), (1765, 91652), (2083, 77660), (3530, 45826), (3883, 41660), (4166, 38830), (7060, 22913), (7766, 20830), (8332, 19415), (10415, 15532)]