25169560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 61740000

約数和(自身を除く): 36570440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 485, 499, 520, 776, 970, 998, 1261, 1940, 1996, 2495, 2522, 3880, 3992, 4990, 5044, 6305, 6487, 9980, 10088, 12610, 12974, 19960, 25220, 25948, 32435, 48403, 50440, 51896, 64870, 96806, 129740, 193612, 242015, 259480, 387224, 484030, 629239, 968060, 1258478, 1936120, 2516956, 3146195, 5033912, 6292390, 12584780, 25169560]

約数ペア:

[(1, 25169560), (2, 12584780), (4, 6292390), (5, 5033912), (8, 3146195), (10, 2516956), (13, 1936120), (20, 1258478), (26, 968060), (40, 629239), (52, 484030), (65, 387224), (97, 259480), (104, 242015), (130, 193612), (194, 129740), (260, 96806), (388, 64870), (485, 51896), (499, 50440), (520, 48403), (776, 32435), (970, 25948), (998, 25220), (1261, 19960), (1940, 12974), (1996, 12610), (2495, 10088), (2522, 9980), (3880, 6487), (3992, 6305), (4990, 5044)]