203416760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 467812800

約数和(自身を除く): 264396040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 103, 194, 206, 388, 412, 485, 509, 515, 776, 824, 970, 1018, 1030, 1940, 2036, 2060, 2545, 3880, 4072, 4120, 5090, 9991, 10180, 19982, 20360, 39964, 49373, 49955, 52427, 79928, 98746, 99910, 104854, 197492, 199820, 209708, 246865, 262135, 394984, 399640, 419416, 493730, 524270, 987460, 1048540, 1974920, 2097080, 5085419, 10170838, 20341676, 25427095, 40683352, 50854190, 101708380, 203416760]

約数ペア:

[(1, 203416760), (2, 101708380), (4, 50854190), (5, 40683352), (8, 25427095), (10, 20341676), (20, 10170838), (40, 5085419), (97, 2097080), (103, 1974920), (194, 1048540), (206, 987460), (388, 524270), (412, 493730), (485, 419416), (509, 399640), (515, 394984), (776, 262135), (824, 246865), (970, 209708), (1018, 199820), (1030, 197492), (1940, 104854), (2036, 99910), (2060, 98746), (2545, 79928), (3880, 52427), (4072, 49955), (4120, 49373), (5090, 39964), (9991, 20360), (10180, 19982)]