81787230

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1142

約数の個数: 96

約数和(自身を含む): 245127168

約数和(自身を除く): 163339938

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 131, 210, 262, 315, 393, 630, 655, 786, 917, 991, 1179, 1310, 1834, 1965, 1982, 2358, 2751, 2973, 3930, 4585, 4955, 5502, 5895, 5946, 6937, 8253, 8919, 9170, 9910, 11790, 13755, 13874, 14865, 16506, 17838, 20811, 27510, 29730, 34685, 41265, 41622, 44595, 62433, 69370, 82530, 89190, 104055, 124866, 129821, 208110, 259642, 312165, 389463, 624330, 649105, 778926, 908747, 1168389, 1298210, 1817494, 1947315, 2336778, 2726241, 3894630, 4543735, 5452482, 5841945, 8178723, 9087470, 11683890, 13631205, 16357446, 27262410, 40893615, 81787230]

約数ペア:

[(1, 81787230), (2, 40893615), (3, 27262410), (5, 16357446), (6, 13631205), (7, 11683890), (9, 9087470), (10, 8178723), (14, 5841945), (15, 5452482), (18, 4543735), (21, 3894630), (30, 2726241), (35, 2336778), (42, 1947315), (45, 1817494), (63, 1298210), (70, 1168389), (90, 908747), (105, 778926), (126, 649105), (131, 624330), (210, 389463), (262, 312165), (315, 259642), (393, 208110), (630, 129821), (655, 124866), (786, 104055), (917, 89190), (991, 82530), (1179, 69370), (1310, 62433), (1834, 44595), (1965, 41622), (1982, 41265), (2358, 34685), (2751, 29730), (2973, 27510), (3930, 20811), (4585, 17838), (4955, 16506), (5502, 14865), (5895, 13874), (5946, 13755), (6937, 11790), (8253, 9910), (8919, 9170)]