1981836625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{15289}}^1$

素因数の和:15382

約数の個数: 32

約数和(自身を含む): 2661927840

約数和(自身を除く): 680091215

約数列:

[1, 5, 17, 25, 61, 85, 125, 305, 425, 1037, 1525, 2125, 5185, 7625, 15289, 25925, 76445, 129625, 259913, 382225, 932629, 1299565, 1911125, 4663145, 6497825, 15854693, 23315725, 32489125, 79273465, 116578625, 396367325, 1981836625]

約数ペア:

[(1, 1981836625), (5, 396367325), (17, 116578625), (25, 79273465), (61, 32489125), (85, 23315725), (125, 15854693), (305, 6497825), (425, 4663145), (1037, 1911125), (1525, 1299565), (2125, 932629), (5185, 382225), (7625, 259913), (15289, 129625), (25925, 76445)]