81341570

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{1409}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 153498240

約数和(自身を除く): 72156670

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 251, 502, 1255, 1409, 2510, 2818, 5773, 7045, 11546, 14090, 28865, 32407, 57730, 64814, 162035, 324070, 353659, 707318, 1768295, 3536590, 8134157, 16268314, 40670785, 81341570]

約数ペア:

[(1, 81341570), (2, 40670785), (5, 16268314), (10, 8134157), (23, 3536590), (46, 1768295), (115, 707318), (230, 353659), (251, 324070), (502, 162035), (1255, 64814), (1409, 57730), (2510, 32407), (2818, 28865), (5773, 14090), (7045, 11546)]