31400880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{18691}}^1$

素因数の和:18714

約数の個数: 80

約数和(自身を含む): 111254784

約数和(自身を除く): 79853904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 18691, 37382, 56073, 74764, 93455, 112146, 130837, 149528, 186910, 224292, 261674, 280365, 299056, 373820, 392511, 448584, 523348, 560730, 654185, 747640, 785022, 897168, 1046696, 1121460, 1308370, 1495280, 1570044, 1962555, 2093392, 2242920, 2616740, 3140088, 3925110, 4485840, 5233480, 6280176, 7850220, 10466960, 15700440, 31400880]

約数ペア:

[(1, 31400880), (2, 15700440), (3, 10466960), (4, 7850220), (5, 6280176), (6, 5233480), (7, 4485840), (8, 3925110), (10, 3140088), (12, 2616740), (14, 2242920), (15, 2093392), (16, 1962555), (20, 1570044), (21, 1495280), (24, 1308370), (28, 1121460), (30, 1046696), (35, 897168), (40, 785022), (42, 747640), (48, 654185), (56, 560730), (60, 523348), (70, 448584), (80, 392511), (84, 373820), (105, 299056), (112, 280365), (120, 261674), (140, 224292), (168, 186910), (210, 149528), (240, 130837), (280, 112146), (336, 93455), (420, 74764), (560, 56073), (840, 37382), (1680, 18691)]