31219320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 103991040

約数和(自身を除く): 72771720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 67, 88, 110, 120, 132, 134, 165, 201, 220, 264, 268, 330, 335, 353, 402, 440, 536, 660, 670, 706, 737, 804, 1005, 1059, 1320, 1340, 1412, 1474, 1608, 1765, 2010, 2118, 2211, 2680, 2824, 2948, 3530, 3685, 3883, 4020, 4236, 4422, 5295, 5896, 7060, 7370, 7766, 8040, 8472, 8844, 10590, 11055, 11649, 14120, 14740, 15532, 17688, 19415, 21180, 22110, 23298, 23651, 29480, 31064, 38830, 42360, 44220, 46596, 47302, 58245, 70953, 77660, 88440, 93192, 94604, 116490, 118255, 141906, 155320, 189208, 232980, 236510, 260161, 283812, 354765, 465960, 473020, 520322, 567624, 709530, 780483, 946040, 1040644, 1300805, 1419060, 1560966, 2081288, 2601610, 2838120, 3121932, 3902415, 5203220, 6243864, 7804830, 10406440, 15609660, 31219320]

約数ペア:

[(1, 31219320), (2, 15609660), (3, 10406440), (4, 7804830), (5, 6243864), (6, 5203220), (8, 3902415), (10, 3121932), (11, 2838120), (12, 2601610), (15, 2081288), (20, 1560966), (22, 1419060), (24, 1300805), (30, 1040644), (33, 946040), (40, 780483), (44, 709530), (55, 567624), (60, 520322), (66, 473020), (67, 465960), (88, 354765), (110, 283812), (120, 260161), (132, 236510), (134, 232980), (165, 189208), (201, 155320), (220, 141906), (264, 118255), (268, 116490), (330, 94604), (335, 93192), (353, 88440), (402, 77660), (440, 70953), (536, 58245), (660, 47302), (670, 46596), (706, 44220), (737, 42360), (804, 38830), (1005, 31064), (1059, 29480), (1320, 23651), (1340, 23298), (1412, 22110), (1474, 21180), (1608, 19415), (1765, 17688), (2010, 15532), (2118, 14740), (2211, 14120), (2680, 11649), (2824, 11055), (2948, 10590), (3530, 8844), (3685, 8472), (3883, 8040), (4020, 7766), (4236, 7370), (4422, 7060), (5295, 5896)]