20312368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:749

約数の個数: 40

約数和(自身を含む): 41874800

約数和(自身を除く): 21562432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 613, 872, 1226, 1744, 2071, 2452, 4142, 4904, 8284, 9808, 11647, 16568, 23294, 33136, 46588, 66817, 93176, 133634, 186352, 267268, 534536, 1069072, 1269523, 2539046, 5078092, 10156184, 20312368]

約数ペア:

[(1, 20312368), (2, 10156184), (4, 5078092), (8, 2539046), (16, 1269523), (19, 1069072), (38, 534536), (76, 267268), (109, 186352), (152, 133634), (218, 93176), (304, 66817), (436, 46588), (613, 33136), (872, 23294), (1226, 16568), (1744, 11647), (2071, 9808), (2452, 8284), (4142, 4904)]