221063640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263171}}^1$

素因数の和:263192

約数の個数: 64

約数和(自身を含む): 757935360

約数和(自身を除く): 536871720

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, 263171, 526342, 789513, 1052684, 1315855, 1579026, 1842197, 2105368, 2631710, 3158052, 3684394, 3947565, 5263420, 5526591, 6316104, 7368788, 7895130, 9210985, 10526840, 11053182, 14737576, 15790260, 18421970, 22106364, 27632955, 31580520, 36843940, 44212728, 55265910, 73687880, 110531820, 221063640]

約数ペア:

[(1, 221063640), (2, 110531820), (3, 73687880), (4, 55265910), (5, 44212728), (6, 36843940), (7, 31580520), (8, 27632955), (10, 22106364), (12, 18421970), (14, 15790260), (15, 14737576), (20, 11053182), (21, 10526840), (24, 9210985), (28, 7895130), (30, 7368788), (35, 6316104), (40, 5526591), (42, 5263420), (56, 3947565), (60, 3684394), (70, 3158052), (84, 2631710), (105, 2105368), (120, 1842197), (140, 1579026), (168, 1315855), (210, 1052684), (280, 789513), (420, 526342), (840, 263171)]