2001808400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{51593}}^1$

素因数の和:51708

約数の個数: 60

約数和(自身を含む): 4859019732

約数和(自身を除く): 2857211332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1940, 2425, 3880, 4850, 7760, 9700, 19400, 38800, 51593, 103186, 206372, 257965, 412744, 515930, 825488, 1031860, 1289825, 2063720, 2579650, 4127440, 5004521, 5159300, 10009042, 10318600, 20018084, 20637200, 25022605, 40036168, 50045210, 80072336, 100090420, 125113025, 200180840, 250226050, 400361680, 500452100, 1000904200, 2001808400]

約数ペア:

[(1, 2001808400), (2, 1000904200), (4, 500452100), (5, 400361680), (8, 250226050), (10, 200180840), (16, 125113025), (20, 100090420), (25, 80072336), (40, 50045210), (50, 40036168), (80, 25022605), (97, 20637200), (100, 20018084), (194, 10318600), (200, 10009042), (388, 5159300), (400, 5004521), (485, 4127440), (776, 2579650), (970, 2063720), (1552, 1289825), (1940, 1031860), (2425, 825488), (3880, 515930), (4850, 412744), (7760, 257965), (9700, 206372), (19400, 103186), (38800, 51593)]