202178925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^3\times {\mathrm{409}}^1$

素因数の和:464

約数の個数: 72

約数和(自身を含む): 393247400

約数和(自身を除く): 191068475

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 169, 195, 225, 325, 409, 507, 585, 845, 975, 1227, 1521, 2045, 2197, 2535, 2925, 3681, 4225, 5317, 6135, 6591, 7605, 10225, 10985, 12675, 15951, 18405, 19773, 26585, 30675, 32955, 38025, 47853, 54925, 69121, 79755, 92025, 98865, 132925, 164775, 207363, 239265, 345605, 398775, 494325, 622089, 898573, 1036815, 1196325, 1728025, 2695719, 3110445, 4492865, 5184075, 8087157, 13478595, 15552225, 22464325, 40435785, 67392975, 202178925]

約数ペア:

[(1, 202178925), (3, 67392975), (5, 40435785), (9, 22464325), (13, 15552225), (15, 13478595), (25, 8087157), (39, 5184075), (45, 4492865), (65, 3110445), (75, 2695719), (117, 1728025), (169, 1196325), (195, 1036815), (225, 898573), (325, 622089), (409, 494325), (507, 398775), (585, 345605), (845, 239265), (975, 207363), (1227, 164775), (1521, 132925), (2045, 98865), (2197, 92025), (2535, 79755), (2925, 69121), (3681, 54925), (4225, 47853), (5317, 38025), (6135, 32955), (6591, 30675), (7605, 26585), (10225, 19773), (10985, 18405), (12675, 15951)]