31383960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 100154880

約数和(自身を除く): 68770920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 83, 92, 115, 120, 137, 138, 166, 184, 230, 249, 274, 276, 332, 345, 411, 415, 460, 498, 548, 552, 664, 685, 690, 822, 830, 920, 996, 1096, 1245, 1370, 1380, 1644, 1660, 1909, 1992, 2055, 2490, 2740, 2760, 3151, 3288, 3320, 3818, 4110, 4980, 5480, 5727, 6302, 7636, 8220, 9453, 9545, 9960, 11371, 11454, 12604, 15272, 15755, 16440, 18906, 19090, 22742, 22908, 25208, 28635, 31510, 34113, 37812, 38180, 45484, 45816, 47265, 56855, 57270, 63020, 68226, 75624, 76360, 90968, 94530, 113710, 114540, 126040, 136452, 170565, 189060, 227420, 229080, 261533, 272904, 341130, 378120, 454840, 523066, 682260, 784599, 1046132, 1307665, 1364520, 1569198, 2092264, 2615330, 3138396, 3922995, 5230660, 6276792, 7845990, 10461320, 15691980, 31383960]

約数ペア:

[(1, 31383960), (2, 15691980), (3, 10461320), (4, 7845990), (5, 6276792), (6, 5230660), (8, 3922995), (10, 3138396), (12, 2615330), (15, 2092264), (20, 1569198), (23, 1364520), (24, 1307665), (30, 1046132), (40, 784599), (46, 682260), (60, 523066), (69, 454840), (83, 378120), (92, 341130), (115, 272904), (120, 261533), (137, 229080), (138, 227420), (166, 189060), (184, 170565), (230, 136452), (249, 126040), (274, 114540), (276, 113710), (332, 94530), (345, 90968), (411, 76360), (415, 75624), (460, 68226), (498, 63020), (548, 57270), (552, 56855), (664, 47265), (685, 45816), (690, 45484), (822, 38180), (830, 37812), (920, 34113), (996, 31510), (1096, 28635), (1245, 25208), (1370, 22908), (1380, 22742), (1644, 19090), (1660, 18906), (1909, 16440), (1992, 15755), (2055, 15272), (2490, 12604), (2740, 11454), (2760, 11371), (3151, 9960), (3288, 9545), (3320, 9453), (3818, 8220), (4110, 7636), (4980, 6302), (5480, 5727)]