215015640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{255971}}^1$

素因数の和:255992

約数の個数: 64

約数和(自身を含む): 737199360

約数和(自身を除く): 522183720

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, 255971, 511942, 767913, 1023884, 1279855, 1535826, 1791797, 2047768, 2559710, 3071652, 3583594, 3839565, 5119420, 5375391, 6143304, 7167188, 7679130, 8958985, 10238840, 10750782, 14334376, 15358260, 17917970, 21501564, 26876955, 30716520, 35835940, 43003128, 53753910, 71671880, 107507820, 215015640]

約数ペア:

[(1, 215015640), (2, 107507820), (3, 71671880), (4, 53753910), (5, 43003128), (6, 35835940), (7, 30716520), (8, 26876955), (10, 21501564), (12, 17917970), (14, 15358260), (15, 14334376), (20, 10750782), (21, 10238840), (24, 8958985), (28, 7679130), (30, 7167188), (35, 6143304), (40, 5375391), (42, 5119420), (56, 3839565), (60, 3583594), (70, 3071652), (84, 2559710), (105, 2047768), (120, 1791797), (140, 1535826), (168, 1279855), (210, 1023884), (280, 767913), (420, 511942), (840, 255971)]