20294925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 41902080

約数和(自身を除く): 21607155

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 31, 35, 43, 75, 87, 93, 105, 129, 145, 155, 175, 203, 215, 217, 301, 435, 465, 525, 609, 645, 651, 725, 775, 899, 903, 1015, 1075, 1085, 1247, 1333, 1505, 2175, 2325, 2697, 3045, 3225, 3255, 3741, 3999, 4495, 4515, 5075, 5425, 6235, 6293, 6665, 7525, 8729, 9331, 13485, 15225, 16275, 18705, 18879, 19995, 22475, 22575, 26187, 27993, 31175, 31465, 33325, 38657, 43645, 46655, 67425, 93525, 94395, 99975, 115971, 130935, 139965, 157325, 193285, 218225, 233275, 270599, 471975, 579855, 654675, 699825, 811797, 966425, 1352995, 2899275, 4058985, 6764975, 20294925]

約数ペア:

[(1, 20294925), (3, 6764975), (5, 4058985), (7, 2899275), (15, 1352995), (21, 966425), (25, 811797), (29, 699825), (31, 654675), (35, 579855), (43, 471975), (75, 270599), (87, 233275), (93, 218225), (105, 193285), (129, 157325), (145, 139965), (155, 130935), (175, 115971), (203, 99975), (215, 94395), (217, 93525), (301, 67425), (435, 46655), (465, 43645), (525, 38657), (609, 33325), (645, 31465), (651, 31175), (725, 27993), (775, 26187), (899, 22575), (903, 22475), (1015, 19995), (1075, 18879), (1085, 18705), (1247, 16275), (1333, 15225), (1505, 13485), (2175, 9331), (2325, 8729), (2697, 7525), (3045, 6665), (3225, 6293), (3255, 6235), (3741, 5425), (3999, 5075), (4495, 4515)]