56251215

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 108697680

約数和(自身を除く): 52446465

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 139, 153, 207, 255, 345, 391, 417, 529, 695, 765, 1035, 1173, 1251, 1587, 1955, 2085, 2363, 2645, 3197, 3519, 4761, 5865, 6255, 7089, 7935, 8993, 9591, 11815, 15985, 17595, 21267, 23805, 26979, 28773, 35445, 44965, 47955, 54349, 73531, 80937, 106335, 134895, 143865, 163047, 220593, 271745, 367655, 404685, 489141, 661779, 815235, 1102965, 1250027, 2445705, 3308895, 3750081, 6250135, 11250243, 18750405, 56251215]

約数ペア:

[(1, 56251215), (3, 18750405), (5, 11250243), (9, 6250135), (15, 3750081), (17, 3308895), (23, 2445705), (45, 1250027), (51, 1102965), (69, 815235), (85, 661779), (115, 489141), (139, 404685), (153, 367655), (207, 271745), (255, 220593), (345, 163047), (391, 143865), (417, 134895), (529, 106335), (695, 80937), (765, 73531), (1035, 54349), (1173, 47955), (1251, 44965), (1587, 35445), (1955, 28773), (2085, 26979), (2363, 23805), (2645, 21267), (3197, 17595), (3519, 15985), (4761, 11815), (5865, 9591), (6255, 8993), (7089, 7935)]