645437205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:627

約数の個数: 96

約数和(自身を含む): 1331386368

約数和(自身を除く): 685949163

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 157, 217, 279, 315, 421, 465, 471, 651, 785, 1085, 1099, 1263, 1395, 1413, 1953, 2105, 2355, 2947, 3255, 3297, 3789, 4867, 5495, 6315, 7065, 8841, 9765, 9891, 13051, 14601, 14735, 16485, 18945, 24335, 26523, 34069, 39153, 43803, 44205, 49455, 65255, 66097, 73005, 91357, 102207, 117459, 132615, 170345, 195765, 198291, 219015, 274071, 306621, 330485, 456785, 462679, 511035, 587295, 594873, 822213, 991455, 1370355, 1388037, 1533105, 2049007, 2313395, 2974365, 4111065, 4164111, 6147021, 6940185, 10245035, 14343049, 18441063, 20820555, 30735105, 43029147, 71715245, 92205315, 129087441, 215145735, 645437205]

約数ペア:

[(1, 645437205), (3, 215145735), (5, 129087441), (7, 92205315), (9, 71715245), (15, 43029147), (21, 30735105), (31, 20820555), (35, 18441063), (45, 14343049), (63, 10245035), (93, 6940185), (105, 6147021), (155, 4164111), (157, 4111065), (217, 2974365), (279, 2313395), (315, 2049007), (421, 1533105), (465, 1388037), (471, 1370355), (651, 991455), (785, 822213), (1085, 594873), (1099, 587295), (1263, 511035), (1395, 462679), (1413, 456785), (1953, 330485), (2105, 306621), (2355, 274071), (2947, 219015), (3255, 198291), (3297, 195765), (3789, 170345), (4867, 132615), (5495, 117459), (6315, 102207), (7065, 91357), (8841, 73005), (9765, 66097), (9891, 65255), (13051, 49455), (14601, 44205), (14735, 43803), (16485, 39153), (18945, 34069), (24335, 26523)]