20351660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1093}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 52380720

約数和(自身を除く): 32029060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1093, 1330, 1862, 2186, 2660, 3724, 4372, 4655, 5465, 7651, 9310, 10930, 15302, 18620, 20767, 21860, 30604, 38255, 41534, 53557, 76510, 83068, 103835, 107114, 145369, 153020, 207670, 214228, 267785, 290738, 415340, 535570, 581476, 726845, 1017583, 1071140, 1453690, 2035166, 2907380, 4070332, 5087915, 10175830, 20351660]

約数ペア:

[(1, 20351660), (2, 10175830), (4, 5087915), (5, 4070332), (7, 2907380), (10, 2035166), (14, 1453690), (19, 1071140), (20, 1017583), (28, 726845), (35, 581476), (38, 535570), (49, 415340), (70, 290738), (76, 267785), (95, 214228), (98, 207670), (133, 153020), (140, 145369), (190, 107114), (196, 103835), (245, 83068), (266, 76510), (380, 53557), (490, 41534), (532, 38255), (665, 30604), (931, 21860), (980, 20767), (1093, 18620), (1330, 15302), (1862, 10930), (2186, 9310), (2660, 7651), (3724, 5465), (4372, 4655)]