20114740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{883}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 45444672

約数和(自身を除く): 25329932

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 883, 1139, 1340, 1766, 2278, 3532, 4415, 4556, 5695, 8830, 11390, 15011, 17660, 22780, 30022, 59161, 60044, 75055, 118322, 150110, 236644, 295805, 300220, 591610, 1005737, 1183220, 2011474, 4022948, 5028685, 10057370, 20114740]

約数ペア:

[(1, 20114740), (2, 10057370), (4, 5028685), (5, 4022948), (10, 2011474), (17, 1183220), (20, 1005737), (34, 591610), (67, 300220), (68, 295805), (85, 236644), (134, 150110), (170, 118322), (268, 75055), (335, 60044), (340, 59161), (670, 30022), (883, 22780), (1139, 17660), (1340, 15011), (1766, 11390), (2278, 8830), (3532, 5695), (4415, 4556)]