811531520

素因数分解:

$2^8\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1597}}^1$

素因数の和:2015

約数の個数: 72

約数和(自身を含む): 1949988264

約数和(自身を除く): 1138456744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 397, 640, 794, 1280, 1588, 1597, 1985, 3176, 3194, 3970, 6352, 6388, 7940, 7985, 12704, 12776, 15880, 15970, 25408, 25552, 31760, 31940, 50816, 51104, 63520, 63880, 101632, 102208, 127040, 127760, 204416, 254080, 255520, 408832, 508160, 511040, 634009, 1022080, 1268018, 2044160, 2536036, 3170045, 5072072, 6340090, 10144144, 12680180, 20288288, 25360360, 40576576, 50720720, 81153152, 101441440, 162306304, 202882880, 405765760, 811531520]

約数ペア:

[(1, 811531520), (2, 405765760), (4, 202882880), (5, 162306304), (8, 101441440), (10, 81153152), (16, 50720720), (20, 40576576), (32, 25360360), (40, 20288288), (64, 12680180), (80, 10144144), (128, 6340090), (160, 5072072), (256, 3170045), (320, 2536036), (397, 2044160), (640, 1268018), (794, 1022080), (1280, 634009), (1588, 511040), (1597, 508160), (1985, 408832), (3176, 255520), (3194, 254080), (3970, 204416), (6352, 127760), (6388, 127040), (7940, 102208), (7985, 101632), (12704, 63880), (12776, 63520), (15880, 51104), (15970, 50816), (25408, 31940), (25552, 31760)]