53167640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 123197760

約数和(自身を除く): 70030120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 97, 142, 193, 194, 284, 355, 386, 388, 485, 568, 710, 772, 776, 965, 970, 1420, 1544, 1930, 1940, 2840, 3860, 3880, 6887, 7720, 13703, 13774, 18721, 27406, 27548, 34435, 37442, 54812, 55096, 68515, 68870, 74884, 93605, 109624, 137030, 137740, 149768, 187210, 274060, 275480, 374420, 548120, 748840, 1329191, 2658382, 5316764, 6645955, 10633528, 13291910, 26583820, 53167640]

約数ペア:

[(1, 53167640), (2, 26583820), (4, 13291910), (5, 10633528), (8, 6645955), (10, 5316764), (20, 2658382), (40, 1329191), (71, 748840), (97, 548120), (142, 374420), (193, 275480), (194, 274060), (284, 187210), (355, 149768), (386, 137740), (388, 137030), (485, 109624), (568, 93605), (710, 74884), (772, 68870), (776, 68515), (965, 55096), (970, 54812), (1420, 37442), (1544, 34435), (1930, 27548), (1940, 27406), (2840, 18721), (3860, 13774), (3880, 13703), (6887, 7720)]