31404120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:705

約数の個数: 128

約数和(自身を含む): 105719040

約数和(自身を除く): 74314920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 132, 148, 165, 185, 220, 222, 264, 296, 330, 370, 407, 440, 444, 555, 643, 660, 740, 814, 888, 1110, 1221, 1286, 1320, 1480, 1628, 1929, 2035, 2220, 2442, 2572, 3215, 3256, 3858, 4070, 4440, 4884, 5144, 6105, 6430, 7073, 7716, 8140, 9645, 9768, 12210, 12860, 14146, 15432, 16280, 19290, 21219, 23791, 24420, 25720, 28292, 35365, 38580, 42438, 47582, 48840, 56584, 70730, 71373, 77160, 84876, 95164, 106095, 118955, 141460, 142746, 169752, 190328, 212190, 237910, 261701, 282920, 285492, 356865, 424380, 475820, 523402, 570984, 713730, 785103, 848760, 951640, 1046804, 1308505, 1427460, 1570206, 2093608, 2617010, 2854920, 3140412, 3925515, 5234020, 6280824, 7851030, 10468040, 15702060, 31404120]

約数ペア:

[(1, 31404120), (2, 15702060), (3, 10468040), (4, 7851030), (5, 6280824), (6, 5234020), (8, 3925515), (10, 3140412), (11, 2854920), (12, 2617010), (15, 2093608), (20, 1570206), (22, 1427460), (24, 1308505), (30, 1046804), (33, 951640), (37, 848760), (40, 785103), (44, 713730), (55, 570984), (60, 523402), (66, 475820), (74, 424380), (88, 356865), (110, 285492), (111, 282920), (120, 261701), (132, 237910), (148, 212190), (165, 190328), (185, 169752), (220, 142746), (222, 141460), (264, 118955), (296, 106095), (330, 95164), (370, 84876), (407, 77160), (440, 71373), (444, 70730), (555, 56584), (643, 48840), (660, 47582), (740, 42438), (814, 38580), (888, 35365), (1110, 28292), (1221, 25720), (1286, 24420), (1320, 23791), (1480, 21219), (1628, 19290), (1929, 16280), (2035, 15432), (2220, 14146), (2442, 12860), (2572, 12210), (3215, 9768), (3256, 9645), (3858, 8140), (4070, 7716), (4440, 7073), (4884, 6430), (5144, 6105)]