81881820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2861}}^1$

素因数の和:2932

約数の個数: 96

約数和(自身を含む): 259640640

約数和(自身を除く): 177758820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 90, 106, 108, 135, 159, 180, 212, 265, 270, 318, 477, 530, 540, 636, 795, 954, 1060, 1431, 1590, 1908, 2385, 2861, 2862, 3180, 4770, 5722, 5724, 7155, 8583, 9540, 11444, 14305, 14310, 17166, 25749, 28610, 28620, 34332, 42915, 51498, 57220, 77247, 85830, 102996, 128745, 151633, 154494, 171660, 257490, 303266, 308988, 386235, 454899, 514980, 606532, 758165, 772470, 909798, 1364697, 1516330, 1544940, 1819596, 2274495, 2729394, 3032660, 4094091, 4548990, 5458788, 6823485, 8188182, 9097980, 13646970, 16376364, 20470455, 27293940, 40940910, 81881820]

約数ペア:

[(1, 81881820), (2, 40940910), (3, 27293940), (4, 20470455), (5, 16376364), (6, 13646970), (9, 9097980), (10, 8188182), (12, 6823485), (15, 5458788), (18, 4548990), (20, 4094091), (27, 3032660), (30, 2729394), (36, 2274495), (45, 1819596), (53, 1544940), (54, 1516330), (60, 1364697), (90, 909798), (106, 772470), (108, 758165), (135, 606532), (159, 514980), (180, 454899), (212, 386235), (265, 308988), (270, 303266), (318, 257490), (477, 171660), (530, 154494), (540, 151633), (636, 128745), (795, 102996), (954, 85830), (1060, 77247), (1431, 57220), (1590, 51498), (1908, 42915), (2385, 34332), (2861, 28620), (2862, 28610), (3180, 25749), (4770, 17166), (5722, 14310), (5724, 14305), (7155, 11444), (8583, 9540)]