20339348

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 19174252

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 89, 97, 124, 178, 194, 356, 388, 589, 1178, 1691, 1843, 2356, 2759, 3007, 3382, 3686, 5518, 6014, 6764, 7372, 8633, 11036, 12028, 17266, 34532, 52421, 57133, 104842, 114266, 164027, 209684, 228532, 267623, 328054, 535246, 656108, 1070492, 5084837, 10169674, 20339348]

約数ペア:

[(1, 20339348), (2, 10169674), (4, 5084837), (19, 1070492), (31, 656108), (38, 535246), (62, 328054), (76, 267623), (89, 228532), (97, 209684), (124, 164027), (178, 114266), (194, 104842), (356, 57133), (388, 52421), (589, 34532), (1178, 17266), (1691, 12028), (1843, 11036), (2356, 8633), (2759, 7372), (3007, 6764), (3382, 6014), (3686, 5518)]