199960425

素因数分解:

$3^2\times 5^2\times 7^3\times {\mathrm{2591}}^1$

素因数の和:2628

約数の個数: 72

約数和(自身を含む): 417830400

約数和(自身を除く): 217869975

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 343, 441, 525, 735, 1029, 1225, 1575, 1715, 2205, 2591, 3087, 3675, 5145, 7773, 8575, 11025, 12955, 15435, 18137, 23319, 25725, 38865, 54411, 64775, 77175, 90685, 116595, 126959, 163233, 194325, 272055, 380877, 453425, 582975, 634795, 816165, 888713, 1142631, 1360275, 1904385, 2666139, 3173975, 4080825, 4443565, 5713155, 7998417, 9521925, 13330695, 22217825, 28565775, 39992085, 66653475, 199960425]

約数ペア:

[(1, 199960425), (3, 66653475), (5, 39992085), (7, 28565775), (9, 22217825), (15, 13330695), (21, 9521925), (25, 7998417), (35, 5713155), (45, 4443565), (49, 4080825), (63, 3173975), (75, 2666139), (105, 1904385), (147, 1360275), (175, 1142631), (225, 888713), (245, 816165), (315, 634795), (343, 582975), (441, 453425), (525, 380877), (735, 272055), (1029, 194325), (1225, 163233), (1575, 126959), (1715, 116595), (2205, 90685), (2591, 77175), (3087, 64775), (3675, 54411), (5145, 38865), (7773, 25725), (8575, 23319), (11025, 18137), (12955, 15435)]