215544940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{3929}}^1$

素因数の和:4162

約数の個数: 48

約数和(自身を含む): 489898080

約数和(自身を除く): 274353140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 422, 844, 1055, 2110, 2743, 3929, 4220, 5486, 7858, 10972, 13715, 15716, 19645, 27430, 39290, 51077, 54860, 78580, 102154, 204308, 255385, 510770, 829019, 1021540, 1658038, 3316076, 4145095, 8290190, 10777247, 16580380, 21554494, 43108988, 53886235, 107772470, 215544940]

約数ペア:

[(1, 215544940), (2, 107772470), (4, 53886235), (5, 43108988), (10, 21554494), (13, 16580380), (20, 10777247), (26, 8290190), (52, 4145095), (65, 3316076), (130, 1658038), (211, 1021540), (260, 829019), (422, 510770), (844, 255385), (1055, 204308), (2110, 102154), (2743, 78580), (3929, 54860), (4220, 51077), (5486, 39290), (7858, 27430), (10972, 19645), (13715, 15716)]