31997140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 84510720

約数和(自身を除く): 52513580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 70, 76, 92, 95, 115, 133, 140, 161, 190, 230, 266, 322, 380, 437, 460, 523, 532, 644, 665, 805, 874, 1046, 1330, 1610, 1748, 2092, 2185, 2615, 2660, 3059, 3220, 3661, 4370, 5230, 6118, 7322, 8740, 9937, 10460, 12029, 12236, 14644, 15295, 18305, 19874, 24058, 30590, 36610, 39748, 48116, 49685, 60145, 61180, 69559, 73220, 84203, 99370, 120290, 139118, 168406, 198740, 228551, 240580, 278236, 336812, 347795, 421015, 457102, 695590, 842030, 914204, 1142755, 1391180, 1599857, 1684060, 2285510, 3199714, 4571020, 6399428, 7999285, 15998570, 31997140]

約数ペア:

[(1, 31997140), (2, 15998570), (4, 7999285), (5, 6399428), (7, 4571020), (10, 3199714), (14, 2285510), (19, 1684060), (20, 1599857), (23, 1391180), (28, 1142755), (35, 914204), (38, 842030), (46, 695590), (70, 457102), (76, 421015), (92, 347795), (95, 336812), (115, 278236), (133, 240580), (140, 228551), (161, 198740), (190, 168406), (230, 139118), (266, 120290), (322, 99370), (380, 84203), (437, 73220), (460, 69559), (523, 61180), (532, 60145), (644, 49685), (665, 48116), (805, 39748), (874, 36610), (1046, 30590), (1330, 24058), (1610, 19874), (1748, 18305), (2092, 15295), (2185, 14644), (2615, 12236), (2660, 12029), (3059, 10460), (3220, 9937), (3661, 8740), (4370, 7322), (5230, 6118)]