221073720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263183}}^1$

素因数の和:263204

約数の個数: 64

約数和(自身を含む): 757969920

約数和(自身を除く): 536896200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 263183, 526366, 789549, 1052732, 1315915, 1579098, 1842281, 2105464, 2631830, 3158196, 3684562, 3947745, 5263660, 5526843, 6316392, 7369124, 7895490, 9211405, 10527320, 11053686, 14738248, 15790980, 18422810, 22107372, 27634215, 31581960, 36845620, 44214744, 55268430, 73691240, 110536860, 221073720]

約数ペア:

[(1, 221073720), (2, 110536860), (3, 73691240), (4, 55268430), (5, 44214744), (6, 36845620), (7, 31581960), (8, 27634215), (10, 22107372), (12, 18422810), (14, 15790980), (15, 14738248), (20, 11053686), (21, 10527320), (24, 9211405), (28, 7895490), (30, 7369124), (35, 6316392), (40, 5526843), (42, 5263660), (56, 3947745), (60, 3684562), (70, 3158196), (84, 2631830), (105, 2105464), (120, 1842281), (140, 1579098), (168, 1315915), (210, 1052732), (280, 789549), (420, 526366), (840, 263183)]