20328165

素因数分解:

$3^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:63

約数の個数: 96

約数和(自身を含む): 43217280

約数和(自身を除く): 22889115

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 65, 81, 99, 117, 135, 143, 165, 169, 195, 243, 297, 351, 405, 429, 495, 507, 585, 715, 729, 845, 891, 1053, 1215, 1287, 1485, 1521, 1755, 1859, 2145, 2187, 2535, 2673, 3159, 3645, 3861, 4455, 4563, 5265, 5577, 6435, 7605, 8019, 9295, 9477, 10935, 11583, 13365, 13689, 15795, 16731, 19305, 22815, 24057, 27885, 28431, 34749, 40095, 41067, 47385, 50193, 57915, 68445, 83655, 104247, 120285, 123201, 142155, 150579, 173745, 205335, 250965, 312741, 369603, 451737, 521235, 616005, 752895, 1355211, 1563705, 1848015, 2258685, 4065633, 6776055, 20328165]

約数ペア:

[(1, 20328165), (3, 6776055), (5, 4065633), (9, 2258685), (11, 1848015), (13, 1563705), (15, 1355211), (27, 752895), (33, 616005), (39, 521235), (45, 451737), (55, 369603), (65, 312741), (81, 250965), (99, 205335), (117, 173745), (135, 150579), (143, 142155), (165, 123201), (169, 120285), (195, 104247), (243, 83655), (297, 68445), (351, 57915), (405, 50193), (429, 47385), (495, 41067), (507, 40095), (585, 34749), (715, 28431), (729, 27885), (845, 24057), (891, 22815), (1053, 19305), (1215, 16731), (1287, 15795), (1485, 13689), (1521, 13365), (1755, 11583), (1859, 10935), (2145, 9477), (2187, 9295), (2535, 8019), (2673, 7605), (3159, 6435), (3645, 5577), (3861, 5265), (4455, 4563)]