27797940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 84750120

約数和(自身を除く): 56952180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 397, 778, 794, 1167, 1191, 1556, 1588, 1945, 1985, 2334, 2382, 3501, 3573, 3890, 3970, 4668, 4764, 5835, 5955, 7002, 7146, 7780, 7940, 11670, 11910, 14004, 14292, 17505, 17865, 23340, 23820, 35010, 35730, 70020, 71460, 154433, 308866, 463299, 617732, 772165, 926598, 1389897, 1544330, 1853196, 2316495, 2779794, 3088660, 4632990, 5559588, 6949485, 9265980, 13898970, 27797940]

約数ペア:

[(1, 27797940), (2, 13898970), (3, 9265980), (4, 6949485), (5, 5559588), (6, 4632990), (9, 3088660), (10, 2779794), (12, 2316495), (15, 1853196), (18, 1544330), (20, 1389897), (30, 926598), (36, 772165), (45, 617732), (60, 463299), (90, 308866), (180, 154433), (389, 71460), (397, 70020), (778, 35730), (794, 35010), (1167, 23820), (1191, 23340), (1556, 17865), (1588, 17505), (1945, 14292), (1985, 14004), (2334, 11910), (2382, 11670), (3501, 7940), (3573, 7780), (3890, 7146), (3970, 7002), (4668, 5955), (4764, 5835)]