408889744

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{1997}}^1$

素因数の和:2263

約数の個数: 40

約数和(自身を含む): 808662528

約数和(自身を除く): 399772784

約数列:

[1, 2, 4, 8, 16, 67, 134, 191, 268, 382, 536, 764, 1072, 1528, 1997, 3056, 3994, 7988, 12797, 15976, 25594, 31952, 51188, 102376, 133799, 204752, 267598, 381427, 535196, 762854, 1070392, 1525708, 2140784, 3051416, 6102832, 25555609, 51111218, 102222436, 204444872, 408889744]

約数ペア:

[(1, 408889744), (2, 204444872), (4, 102222436), (8, 51111218), (16, 25555609), (67, 6102832), (134, 3051416), (191, 2140784), (268, 1525708), (382, 1070392), (536, 762854), (764, 535196), (1072, 381427), (1528, 267598), (1997, 204752), (3056, 133799), (3994, 102376), (7988, 51188), (12797, 31952), (15976, 25594)]