211340872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 436233600

約数和(自身を除く): 224892728

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 71, 86, 136, 142, 172, 284, 344, 509, 568, 731, 1018, 1207, 1462, 2036, 2414, 2924, 3053, 4072, 4828, 5848, 6106, 8653, 9656, 12212, 17306, 21887, 24424, 34612, 36139, 43774, 51901, 69224, 72278, 87548, 103802, 144556, 175096, 207604, 289112, 372079, 415208, 614363, 744158, 1228726, 1488316, 1553977, 2457452, 2976632, 3107954, 4914904, 6215908, 12431816, 26417609, 52835218, 105670436, 211340872]

約数ペア:

[(1, 211340872), (2, 105670436), (4, 52835218), (8, 26417609), (17, 12431816), (34, 6215908), (43, 4914904), (68, 3107954), (71, 2976632), (86, 2457452), (136, 1553977), (142, 1488316), (172, 1228726), (284, 744158), (344, 614363), (509, 415208), (568, 372079), (731, 289112), (1018, 207604), (1207, 175096), (1462, 144556), (2036, 103802), (2414, 87548), (2924, 72278), (3053, 69224), (4072, 51901), (4828, 43774), (5848, 36139), (6106, 34612), (8653, 24424), (9656, 21887), (12212, 17306)]