1991541265

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{2711}}^1$

素因数の和:3013

約数の個数: 32

約数和(自身を含む): 2770145280

約数和(自身を除く): 778604015

約数列:

[1, 5, 7, 35, 139, 151, 695, 755, 973, 1057, 2711, 4865, 5285, 13555, 18977, 20989, 94885, 104945, 146923, 376829, 409361, 734615, 1884145, 2046805, 2637803, 2865527, 13189015, 14327635, 56901179, 284505895, 398308253, 1991541265]

約数ペア:

[(1, 1991541265), (5, 398308253), (7, 284505895), (35, 56901179), (139, 14327635), (151, 13189015), (695, 2865527), (755, 2637803), (973, 2046805), (1057, 1884145), (2711, 734615), (4865, 409361), (5285, 376829), (13555, 146923), (18977, 104945), (20989, 94885)]