31211180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1559}}^1$

素因数の和:1599

約数の個数: 96

約数和(自身を含む): 88058880

約数和(自身を除く): 56847700

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1559, 1820, 2002, 2860, 3118, 4004, 5005, 6236, 7795, 10010, 10913, 15590, 17149, 20020, 20267, 21826, 31180, 34298, 40534, 43652, 54565, 68596, 81068, 85745, 101335, 109130, 120043, 141869, 171490, 202670, 218260, 222937, 240086, 283738, 342980, 405340, 445874, 480172, 567476, 600215, 709345, 891748, 1114685, 1200430, 1418690, 1560559, 2229370, 2400860, 2837380, 3121118, 4458740, 6242236, 7802795, 15605590, 31211180]

約数ペア:

[(1, 31211180), (2, 15605590), (4, 7802795), (5, 6242236), (7, 4458740), (10, 3121118), (11, 2837380), (13, 2400860), (14, 2229370), (20, 1560559), (22, 1418690), (26, 1200430), (28, 1114685), (35, 891748), (44, 709345), (52, 600215), (55, 567476), (65, 480172), (70, 445874), (77, 405340), (91, 342980), (110, 283738), (130, 240086), (140, 222937), (143, 218260), (154, 202670), (182, 171490), (220, 141869), (260, 120043), (286, 109130), (308, 101335), (364, 85745), (385, 81068), (455, 68596), (572, 54565), (715, 43652), (770, 40534), (910, 34298), (1001, 31180), (1430, 21826), (1540, 20267), (1559, 20020), (1820, 17149), (2002, 15590), (2860, 10913), (3118, 10010), (4004, 7795), (5005, 6236)]