2019939640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1\times {\mathrm{1069}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 4605451200

約数和(自身を除く): 2585511560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 487, 776, 970, 974, 1069, 1940, 1948, 2138, 2435, 3880, 3896, 4276, 4870, 5345, 8552, 9740, 10690, 19480, 21380, 42760, 47239, 94478, 103693, 188956, 207386, 236195, 377912, 414772, 472390, 518465, 520603, 829544, 944780, 1036930, 1041206, 1889560, 2073860, 2082412, 2603015, 4147720, 4164824, 5206030, 10412060, 20824120, 50498491, 100996982, 201993964, 252492455, 403987928, 504984910, 1009969820, 2019939640]

約数ペア:

[(1, 2019939640), (2, 1009969820), (4, 504984910), (5, 403987928), (8, 252492455), (10, 201993964), (20, 100996982), (40, 50498491), (97, 20824120), (194, 10412060), (388, 5206030), (485, 4164824), (487, 4147720), (776, 2603015), (970, 2082412), (974, 2073860), (1069, 1889560), (1940, 1041206), (1948, 1036930), (2138, 944780), (2435, 829544), (3880, 520603), (3896, 518465), (4276, 472390), (4870, 414772), (5345, 377912), (8552, 236195), (9740, 207386), (10690, 188956), (19480, 103693), (21380, 94478), (42760, 47239)]