257391684

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1597}}^1$

素因数の和:1666

約数の個数: 108

約数和(自身を含む): 734942572

約数和(自身を除く): 477550888

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 37, 44, 66, 74, 99, 111, 121, 132, 148, 198, 222, 242, 333, 363, 396, 407, 444, 484, 666, 726, 814, 1089, 1221, 1332, 1452, 1597, 1628, 2178, 2442, 3194, 3663, 4356, 4477, 4791, 4884, 6388, 7326, 8954, 9582, 13431, 14373, 14652, 17567, 17908, 19164, 26862, 28746, 35134, 40293, 52701, 53724, 57492, 59089, 70268, 80586, 105402, 118178, 158103, 161172, 177267, 193237, 210804, 236356, 316206, 354534, 386474, 531801, 579711, 632412, 649979, 709068, 772948, 1063602, 1159422, 1299958, 1739133, 1949937, 2127204, 2318844, 2599916, 3478266, 3899874, 5849811, 6956532, 7149769, 7799748, 11699622, 14299538, 21449307, 23399244, 28599076, 42898614, 64347921, 85797228, 128695842, 257391684]

約数ペア:

[(1, 257391684), (2, 128695842), (3, 85797228), (4, 64347921), (6, 42898614), (9, 28599076), (11, 23399244), (12, 21449307), (18, 14299538), (22, 11699622), (33, 7799748), (36, 7149769), (37, 6956532), (44, 5849811), (66, 3899874), (74, 3478266), (99, 2599916), (111, 2318844), (121, 2127204), (132, 1949937), (148, 1739133), (198, 1299958), (222, 1159422), (242, 1063602), (333, 772948), (363, 709068), (396, 649979), (407, 632412), (444, 579711), (484, 531801), (666, 386474), (726, 354534), (814, 316206), (1089, 236356), (1221, 210804), (1332, 193237), (1452, 177267), (1597, 161172), (1628, 158103), (2178, 118178), (2442, 105402), (3194, 80586), (3663, 70268), (4356, 59089), (4477, 57492), (4791, 53724), (4884, 52701), (6388, 40293), (7326, 35134), (8954, 28746), (9582, 26862), (13431, 19164), (14373, 17908), (14652, 17567)]