31131135

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 65049600

約数和(自身を除く): 33918465

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 79, 81, 105, 135, 139, 189, 237, 315, 395, 405, 417, 553, 567, 695, 711, 945, 973, 1185, 1251, 1659, 2085, 2133, 2765, 2835, 2919, 3555, 3753, 4865, 4977, 6255, 6399, 8295, 8757, 10665, 10981, 11259, 14595, 14931, 18765, 24885, 26271, 31995, 32943, 43785, 44793, 54905, 56295, 74655, 76867, 78813, 98829, 131355, 164715, 223965, 230601, 296487, 384335, 394065, 494145, 691803, 889461, 1153005, 1482435, 2075409, 3459015, 4447305, 6226227, 10377045, 31131135]

約数ペア:

[(1, 31131135), (3, 10377045), (5, 6226227), (7, 4447305), (9, 3459015), (15, 2075409), (21, 1482435), (27, 1153005), (35, 889461), (45, 691803), (63, 494145), (79, 394065), (81, 384335), (105, 296487), (135, 230601), (139, 223965), (189, 164715), (237, 131355), (315, 98829), (395, 78813), (405, 76867), (417, 74655), (553, 56295), (567, 54905), (695, 44793), (711, 43785), (945, 32943), (973, 31995), (1185, 26271), (1251, 24885), (1659, 18765), (2085, 14931), (2133, 14595), (2765, 11259), (2835, 10981), (2919, 10665), (3555, 8757), (3753, 8295), (4865, 6399), (4977, 6255)]