217013720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{70459}}^1$

素因数の和:70488

約数の個数: 64

約数和(自身を含む): 608774400

約数和(自身を除く): 391760680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 70459, 140918, 281836, 352295, 493213, 563672, 704590, 775049, 986426, 1409180, 1550098, 1972852, 2466065, 2818360, 3100196, 3875245, 3945704, 4932130, 5425343, 6200392, 7750490, 9864260, 10850686, 15500980, 19728520, 21701372, 27126715, 31001960, 43402744, 54253430, 108506860, 217013720]

約数ペア:

[(1, 217013720), (2, 108506860), (4, 54253430), (5, 43402744), (7, 31001960), (8, 27126715), (10, 21701372), (11, 19728520), (14, 15500980), (20, 10850686), (22, 9864260), (28, 7750490), (35, 6200392), (40, 5425343), (44, 4932130), (55, 3945704), (56, 3875245), (70, 3100196), (77, 2818360), (88, 2466065), (110, 1972852), (140, 1550098), (154, 1409180), (220, 986426), (280, 775049), (308, 704590), (385, 563672), (440, 493213), (616, 352295), (770, 281836), (1540, 140918), (3080, 70459)]