81666090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:945

約数の個数: 128

約数和(自身を含む): 245514240

約数和(自身を除く): 163848150

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 31, 33, 45, 54, 55, 62, 66, 90, 93, 99, 110, 135, 155, 165, 186, 198, 270, 279, 297, 310, 330, 341, 465, 495, 558, 594, 682, 837, 887, 930, 990, 1023, 1395, 1485, 1674, 1705, 1774, 2046, 2661, 2790, 2970, 3069, 3410, 4185, 4435, 5115, 5322, 6138, 7983, 8370, 8870, 9207, 9757, 10230, 13305, 15345, 15966, 18414, 19514, 23949, 26610, 27497, 29271, 30690, 39915, 46035, 47898, 48785, 54994, 58542, 79830, 82491, 87813, 92070, 97570, 119745, 137485, 146355, 164982, 175626, 239490, 247473, 263439, 274970, 292710, 302467, 412455, 439065, 494946, 526878, 604934, 742419, 824910, 878130, 907401, 1237365, 1317195, 1484838, 1512335, 1814802, 2474730, 2634390, 2722203, 3024670, 3712095, 4537005, 5444406, 7424190, 8166609, 9074010, 13611015, 16333218, 27222030, 40833045, 81666090]

約数ペア:

[(1, 81666090), (2, 40833045), (3, 27222030), (5, 16333218), (6, 13611015), (9, 9074010), (10, 8166609), (11, 7424190), (15, 5444406), (18, 4537005), (22, 3712095), (27, 3024670), (30, 2722203), (31, 2634390), (33, 2474730), (45, 1814802), (54, 1512335), (55, 1484838), (62, 1317195), (66, 1237365), (90, 907401), (93, 878130), (99, 824910), (110, 742419), (135, 604934), (155, 526878), (165, 494946), (186, 439065), (198, 412455), (270, 302467), (279, 292710), (297, 274970), (310, 263439), (330, 247473), (341, 239490), (465, 175626), (495, 164982), (558, 146355), (594, 137485), (682, 119745), (837, 97570), (887, 92070), (930, 87813), (990, 82491), (1023, 79830), (1395, 58542), (1485, 54994), (1674, 48785), (1705, 47898), (1774, 46035), (2046, 39915), (2661, 30690), (2790, 29271), (2970, 27497), (3069, 26610), (3410, 23949), (4185, 19514), (4435, 18414), (5115, 15966), (5322, 15345), (6138, 13305), (7983, 10230), (8370, 9757), (8870, 9207)]