20737640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6733}}^1$

素因数の和:6762

約数の個数: 64

約数和(自身を含む): 58181760

約数和(自身を除く): 37444120

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, 6733, 13466, 26932, 33665, 47131, 53864, 67330, 74063, 94262, 134660, 148126, 188524, 235655, 269320, 296252, 370315, 377048, 471310, 518441, 592504, 740630, 942620, 1036882, 1481260, 1885240, 2073764, 2592205, 2962520, 4147528, 5184410, 10368820, 20737640]

約数ペア:

[(1, 20737640), (2, 10368820), (4, 5184410), (5, 4147528), (7, 2962520), (8, 2592205), (10, 2073764), (11, 1885240), (14, 1481260), (20, 1036882), (22, 942620), (28, 740630), (35, 592504), (40, 518441), (44, 471310), (55, 377048), (56, 370315), (70, 296252), (77, 269320), (88, 235655), (110, 188524), (140, 148126), (154, 134660), (220, 94262), (280, 74063), (308, 67330), (385, 53864), (440, 47131), (616, 33665), (770, 26932), (1540, 13466), (3080, 6733)]