28004535

素因数分解:

$3^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 54552960

約数和(自身を除く): 26548425

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 197, 243, 351, 405, 585, 591, 729, 985, 1053, 1215, 1755, 1773, 2187, 2561, 2955, 3159, 3645, 5265, 5319, 7683, 8865, 9477, 10935, 12805, 15795, 15957, 23049, 26595, 28431, 38415, 47385, 47871, 69147, 79785, 115245, 142155, 143613, 207441, 239355, 345735, 430839, 622323, 718065, 1037205, 1866969, 2154195, 3111615, 5600907, 9334845, 28004535]

約数ペア:

[(1, 28004535), (3, 9334845), (5, 5600907), (9, 3111615), (13, 2154195), (15, 1866969), (27, 1037205), (39, 718065), (45, 622323), (65, 430839), (81, 345735), (117, 239355), (135, 207441), (195, 143613), (197, 142155), (243, 115245), (351, 79785), (405, 69147), (585, 47871), (591, 47385), (729, 38415), (985, 28431), (1053, 26595), (1215, 23049), (1755, 15957), (1773, 15795), (2187, 12805), (2561, 10935), (2955, 9477), (3159, 8865), (3645, 7683), (5265, 5319)]