20169760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9697}}^1$

素因数の和:9725

約数の個数: 48

約数和(自身を含む): 51321816

約数和(自身を除く): 31152056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9697, 19394, 38788, 48485, 77576, 96970, 126061, 155152, 193940, 252122, 310304, 387880, 504244, 630305, 775760, 1008488, 1260610, 1551520, 2016976, 2521220, 4033952, 5042440, 10084880, 20169760]

約数ペア:

[(1, 20169760), (2, 10084880), (4, 5042440), (5, 4033952), (8, 2521220), (10, 2016976), (13, 1551520), (16, 1260610), (20, 1008488), (26, 775760), (32, 630305), (40, 504244), (52, 387880), (65, 310304), (80, 252122), (104, 193940), (130, 155152), (160, 126061), (208, 96970), (260, 77576), (416, 48485), (520, 38788), (1040, 19394), (2080, 9697)]