20319200

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2309}}^1$

素因数の和:2340

約数の個数: 72

約数和(自身を含む): 54137160

約数和(自身を除く): 33817960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 2309, 4400, 4618, 8800, 9236, 11545, 18472, 23090, 25399, 36944, 46180, 50798, 57725, 73888, 92360, 101596, 115450, 126995, 184720, 203192, 230900, 253990, 369440, 406384, 461800, 507980, 634975, 812768, 923600, 1015960, 1269950, 1847200, 2031920, 2539900, 4063840, 5079800, 10159600, 20319200]

約数ペア:

[(1, 20319200), (2, 10159600), (4, 5079800), (5, 4063840), (8, 2539900), (10, 2031920), (11, 1847200), (16, 1269950), (20, 1015960), (22, 923600), (25, 812768), (32, 634975), (40, 507980), (44, 461800), (50, 406384), (55, 369440), (80, 253990), (88, 230900), (100, 203192), (110, 184720), (160, 126995), (176, 115450), (200, 101596), (220, 92360), (275, 73888), (352, 57725), (400, 50798), (440, 46180), (550, 36944), (800, 25399), (880, 23090), (1100, 18472), (1760, 11545), (2200, 9236), (2309, 8800), (4400, 4618)]