256808412

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{739}}^1$

素因数の和:960

約数の個数: 108

約数和(自身を含む): 759999240

約数和(自身を除く): 503190828

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 197, 252, 294, 394, 441, 588, 591, 739, 788, 882, 1182, 1379, 1478, 1764, 1773, 2217, 2364, 2758, 2956, 3546, 4137, 4434, 5173, 5516, 6651, 7092, 8274, 8868, 9653, 10346, 12411, 13302, 15519, 16548, 19306, 20692, 24822, 26604, 28959, 31038, 36211, 38612, 46557, 49644, 57918, 62076, 72422, 86877, 93114, 108633, 115836, 144844, 145583, 173754, 186228, 217266, 291166, 325899, 347508, 434532, 436749, 582332, 651798, 873498, 1019081, 1303596, 1310247, 1746996, 2038162, 2620494, 3057243, 4076324, 5240988, 6114486, 7133567, 9171729, 12228972, 14267134, 18343458, 21400701, 28534268, 36686916, 42801402, 64202103, 85602804, 128404206, 256808412]

約数ペア:

[(1, 256808412), (2, 128404206), (3, 85602804), (4, 64202103), (6, 42801402), (7, 36686916), (9, 28534268), (12, 21400701), (14, 18343458), (18, 14267134), (21, 12228972), (28, 9171729), (36, 7133567), (42, 6114486), (49, 5240988), (63, 4076324), (84, 3057243), (98, 2620494), (126, 2038162), (147, 1746996), (196, 1310247), (197, 1303596), (252, 1019081), (294, 873498), (394, 651798), (441, 582332), (588, 436749), (591, 434532), (739, 347508), (788, 325899), (882, 291166), (1182, 217266), (1379, 186228), (1478, 173754), (1764, 145583), (1773, 144844), (2217, 115836), (2364, 108633), (2758, 93114), (2956, 86877), (3546, 72422), (4137, 62076), (4434, 57918), (5173, 49644), (5516, 46557), (6651, 38612), (7092, 36211), (8274, 31038), (8868, 28959), (9653, 26604), (10346, 24822), (12411, 20692), (13302, 19306), (15519, 16548)]