19680912

素因数分解:

$2^4\times 3^2\times {\mathrm{97}}^1\times {\mathrm{1409}}^1$

素因数の和:1520

約数の個数: 60

約数和(自身を含む): 55686540

約数和(自身を除く): 36005628

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 97, 144, 194, 291, 388, 582, 776, 873, 1164, 1409, 1552, 1746, 2328, 2818, 3492, 4227, 4656, 5636, 6984, 8454, 11272, 12681, 13968, 16908, 22544, 25362, 33816, 50724, 67632, 101448, 136673, 202896, 273346, 410019, 546692, 820038, 1093384, 1230057, 1640076, 2186768, 2460114, 3280152, 4920228, 6560304, 9840456, 19680912]

約数ペア:

[(1, 19680912), (2, 9840456), (3, 6560304), (4, 4920228), (6, 3280152), (8, 2460114), (9, 2186768), (12, 1640076), (16, 1230057), (18, 1093384), (24, 820038), (36, 546692), (48, 410019), (72, 273346), (97, 202896), (144, 136673), (194, 101448), (291, 67632), (388, 50724), (582, 33816), (776, 25362), (873, 22544), (1164, 16908), (1409, 13968), (1552, 12681), (1746, 11272), (2328, 8454), (2818, 6984), (3492, 5636), (4227, 4656)]