645071672

素因数分解:

$2^3\times 7^2\times {\mathrm{263}}^1\times {\mathrm{6257}}^1$

素因数の和:6540

約数の個数: 48

約数和(自身を含む): 1412555760

約数和(自身を除く): 767484088

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 263, 392, 526, 1052, 1841, 2104, 3682, 6257, 7364, 12514, 12887, 14728, 25028, 25774, 43799, 50056, 51548, 87598, 103096, 175196, 306593, 350392, 613186, 1226372, 1645591, 2452744, 3291182, 6582364, 11519137, 13164728, 23038274, 46076548, 80633959, 92153096, 161267918, 322535836, 645071672]

約数ペア:

[(1, 645071672), (2, 322535836), (4, 161267918), (7, 92153096), (8, 80633959), (14, 46076548), (28, 23038274), (49, 13164728), (56, 11519137), (98, 6582364), (196, 3291182), (263, 2452744), (392, 1645591), (526, 1226372), (1052, 613186), (1841, 350392), (2104, 306593), (3682, 175196), (6257, 103096), (7364, 87598), (12514, 51548), (12887, 50056), (14728, 43799), (25028, 25774)]