31511180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 68027904

約数和(自身を除く): 36516724

約数列:

[1, 2, 4, 5, 10, 20, 73, 113, 146, 191, 226, 292, 365, 382, 452, 565, 730, 764, 955, 1130, 1460, 1910, 2260, 3820, 8249, 13943, 16498, 21583, 27886, 32996, 41245, 43166, 55772, 69715, 82490, 86332, 107915, 139430, 164980, 215830, 278860, 431660, 1575559, 3151118, 6302236, 7877795, 15755590, 31511180]

約数ペア:

[(1, 31511180), (2, 15755590), (4, 7877795), (5, 6302236), (10, 3151118), (20, 1575559), (73, 431660), (113, 278860), (146, 215830), (191, 164980), (226, 139430), (292, 107915), (365, 86332), (382, 82490), (452, 69715), (565, 55772), (730, 43166), (764, 41245), (955, 32996), (1130, 27886), (1460, 21583), (1910, 16498), (2260, 13943), (3820, 8249)]