620647515

素因数分解:

$3^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2593}}^1$

素因数の和:2810

約数の個数: 48

約数和(自身を含む): 1121728608

約数和(自身を除く): 501081093

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 197, 243, 405, 591, 985, 1215, 1773, 2593, 2955, 5319, 7779, 8865, 12965, 15957, 23337, 26595, 38895, 47871, 70011, 79785, 116685, 210033, 239355, 350055, 510821, 630099, 1050165, 1532463, 2554105, 3150495, 4597389, 7662315, 13792167, 22986945, 41376501, 68960835, 124129503, 206882505, 620647515]

約数ペア:

[(1, 620647515), (3, 206882505), (5, 124129503), (9, 68960835), (15, 41376501), (27, 22986945), (45, 13792167), (81, 7662315), (135, 4597389), (197, 3150495), (243, 2554105), (405, 1532463), (591, 1050165), (985, 630099), (1215, 510821), (1773, 350055), (2593, 239355), (2955, 210033), (5319, 116685), (7779, 79785), (8865, 70011), (12965, 47871), (15957, 38895), (23337, 26595)]