81169330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 170449920

約数和(自身を除く): 89280590

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 71, 95, 110, 142, 190, 209, 355, 418, 547, 710, 781, 1045, 1094, 1349, 1562, 2090, 2698, 2735, 3905, 5470, 6017, 6745, 7810, 10393, 12034, 13490, 14839, 20786, 29678, 30085, 38837, 51965, 60170, 74195, 77674, 103930, 114323, 148390, 194185, 228646, 388370, 427207, 571615, 737903, 854414, 1143230, 1475806, 2136035, 3689515, 4272070, 7379030, 8116933, 16233866, 40584665, 81169330]

約数ペア:

[(1, 81169330), (2, 40584665), (5, 16233866), (10, 8116933), (11, 7379030), (19, 4272070), (22, 3689515), (38, 2136035), (55, 1475806), (71, 1143230), (95, 854414), (110, 737903), (142, 571615), (190, 427207), (209, 388370), (355, 228646), (418, 194185), (547, 148390), (710, 114323), (781, 103930), (1045, 77674), (1094, 74195), (1349, 60170), (1562, 51965), (2090, 38837), (2698, 30085), (2735, 29678), (3905, 20786), (5470, 14839), (6017, 13490), (6745, 12034), (7810, 10393)]