87988740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{209497}}^1$

素因数の和:209516

約数の個数: 48

約数和(自身を含む): 281565312

約数和(自身を除く): 193576572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 209497, 418994, 628491, 837988, 1047485, 1256982, 1466479, 2094970, 2513964, 2932958, 3142455, 4189940, 4399437, 5865916, 6284910, 7332395, 8798874, 12569820, 14664790, 17597748, 21997185, 29329580, 43994370, 87988740]

約数ペア:

[(1, 87988740), (2, 43994370), (3, 29329580), (4, 21997185), (5, 17597748), (6, 14664790), (7, 12569820), (10, 8798874), (12, 7332395), (14, 6284910), (15, 5865916), (20, 4399437), (21, 4189940), (28, 3142455), (30, 2932958), (35, 2513964), (42, 2094970), (60, 1466479), (70, 1256982), (84, 1047485), (105, 837988), (140, 628491), (210, 418994), (420, 209497)]