81889340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 199148544

約数和(自身を除く): 117259204

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 97, 130, 170, 191, 194, 221, 260, 340, 382, 388, 442, 485, 764, 884, 955, 970, 1105, 1261, 1649, 1910, 1940, 2210, 2483, 2522, 3247, 3298, 3820, 4420, 4966, 5044, 6305, 6494, 6596, 8245, 9932, 12415, 12610, 12988, 16235, 16490, 18527, 21437, 24830, 25220, 32470, 32980, 37054, 42211, 42874, 49660, 64940, 74108, 84422, 85748, 92635, 107185, 168844, 185270, 211055, 214370, 240851, 314959, 370540, 422110, 428740, 481702, 629918, 844220, 963404, 1204255, 1259836, 1574795, 2408510, 3149590, 4094467, 4817020, 6299180, 8188934, 16377868, 20472335, 40944670, 81889340]

約数ペア:

[(1, 81889340), (2, 40944670), (4, 20472335), (5, 16377868), (10, 8188934), (13, 6299180), (17, 4817020), (20, 4094467), (26, 3149590), (34, 2408510), (52, 1574795), (65, 1259836), (68, 1204255), (85, 963404), (97, 844220), (130, 629918), (170, 481702), (191, 428740), (194, 422110), (221, 370540), (260, 314959), (340, 240851), (382, 214370), (388, 211055), (442, 185270), (485, 168844), (764, 107185), (884, 92635), (955, 85748), (970, 84422), (1105, 74108), (1261, 64940), (1649, 49660), (1910, 42874), (1940, 42211), (2210, 37054), (2483, 32980), (2522, 32470), (3247, 25220), (3298, 24830), (3820, 21437), (4420, 18527), (4966, 16490), (5044, 16235), (6305, 12988), (6494, 12610), (6596, 12415), (8245, 9932)]