20045344

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 45045504

約数和(自身を除く): 25000160

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 167, 176, 242, 248, 334, 341, 352, 484, 496, 668, 682, 968, 992, 1336, 1364, 1837, 1936, 2672, 2728, 3674, 3751, 3872, 5177, 5344, 5456, 7348, 7502, 10354, 10912, 14696, 15004, 20207, 20708, 29392, 30008, 40414, 41416, 56947, 58784, 60016, 80828, 82832, 113894, 120032, 161656, 165664, 227788, 323312, 455576, 626417, 646624, 911152, 1252834, 1822304, 2505668, 5011336, 10022672, 20045344]

約数ペア:

[(1, 20045344), (2, 10022672), (4, 5011336), (8, 2505668), (11, 1822304), (16, 1252834), (22, 911152), (31, 646624), (32, 626417), (44, 455576), (62, 323312), (88, 227788), (121, 165664), (124, 161656), (167, 120032), (176, 113894), (242, 82832), (248, 80828), (334, 60016), (341, 58784), (352, 56947), (484, 41416), (496, 40414), (668, 30008), (682, 29392), (968, 20708), (992, 20207), (1336, 15004), (1364, 14696), (1837, 10912), (1936, 10354), (2672, 7502), (2728, 7348), (3674, 5456), (3751, 5344), (3872, 5177)]