81335200

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5351}}^1$

素因数の和:5390

約数の個数: 72

約数和(自身を含む): 209049120

約数和(自身を除く): 127713920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1520, 1900, 3040, 3800, 5351, 7600, 10702, 15200, 21404, 26755, 42808, 53510, 85616, 101669, 107020, 133775, 171232, 203338, 214040, 267550, 406676, 428080, 508345, 535100, 813352, 856160, 1016690, 1070200, 1626704, 2033380, 2140400, 2541725, 3253408, 4066760, 4280800, 5083450, 8133520, 10166900, 16267040, 20333800, 40667600, 81335200]

約数ペア:

[(1, 81335200), (2, 40667600), (4, 20333800), (5, 16267040), (8, 10166900), (10, 8133520), (16, 5083450), (19, 4280800), (20, 4066760), (25, 3253408), (32, 2541725), (38, 2140400), (40, 2033380), (50, 1626704), (76, 1070200), (80, 1016690), (95, 856160), (100, 813352), (152, 535100), (160, 508345), (190, 428080), (200, 406676), (304, 267550), (380, 214040), (400, 203338), (475, 171232), (608, 133775), (760, 107020), (800, 101669), (950, 85616), (1520, 53510), (1900, 42808), (3040, 26755), (3800, 21404), (5351, 15200), (7600, 10702)]