397725220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1\times {\mathrm{467}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 847566720

約数和(自身を除く): 449841500

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 439, 467, 485, 878, 934, 970, 1756, 1868, 1940, 2195, 2335, 4390, 4670, 8780, 9340, 42583, 45299, 85166, 90598, 170332, 181196, 205013, 212915, 226495, 410026, 425830, 452990, 820052, 851660, 905980, 1025065, 2050130, 4100260, 19886261, 39772522, 79545044, 99431305, 198862610, 397725220]

約数ペア:

[(1, 397725220), (2, 198862610), (4, 99431305), (5, 79545044), (10, 39772522), (20, 19886261), (97, 4100260), (194, 2050130), (388, 1025065), (439, 905980), (467, 851660), (485, 820052), (878, 452990), (934, 425830), (970, 410026), (1756, 226495), (1868, 212915), (1940, 205013), (2195, 181196), (2335, 170332), (4390, 90598), (4670, 85166), (8780, 45299), (9340, 42583)]