31531390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 65774592

約数和(自身を除く): 34243202

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 103, 110, 115, 121, 206, 230, 242, 253, 506, 515, 605, 1030, 1133, 1210, 1265, 1331, 2266, 2369, 2530, 2662, 2783, 4738, 5566, 5665, 6655, 11330, 11845, 12463, 13310, 13915, 23690, 24926, 26059, 27830, 30613, 52118, 61226, 62315, 124630, 130295, 137093, 153065, 260590, 274186, 286649, 306130, 573298, 685465, 1370930, 1433245, 2866490, 3153139, 6306278, 15765695, 31531390]

約数ペア:

[(1, 31531390), (2, 15765695), (5, 6306278), (10, 3153139), (11, 2866490), (22, 1433245), (23, 1370930), (46, 685465), (55, 573298), (103, 306130), (110, 286649), (115, 274186), (121, 260590), (206, 153065), (230, 137093), (242, 130295), (253, 124630), (506, 62315), (515, 61226), (605, 52118), (1030, 30613), (1133, 27830), (1210, 26059), (1265, 24926), (1331, 23690), (2266, 13915), (2369, 13310), (2530, 12463), (2662, 11845), (2783, 11330), (4738, 6655), (5566, 5665)]