19057870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4729}}^1$

素因数の和:4780

約数の個数: 32

約数和(自身を含む): 38142720

約数和(自身を除く): 19084850

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4729, 9458, 23645, 47290, 61477, 122954, 146599, 293198, 307385, 614770, 732995, 1465990, 1905787, 3811574, 9528935, 19057870]

約数ペア:

[(1, 19057870), (2, 9528935), (5, 3811574), (10, 1905787), (13, 1465990), (26, 732995), (31, 614770), (62, 307385), (65, 293198), (130, 146599), (155, 122954), (310, 61477), (403, 47290), (806, 23645), (2015, 9458), (4030, 4729)]