256427358

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{563}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 574359552

約数和(自身を除く): 317932194

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 67, 103, 134, 201, 206, 309, 402, 563, 618, 737, 1126, 1133, 1474, 1689, 2211, 2266, 3378, 3399, 4422, 6193, 6798, 6901, 12386, 13802, 18579, 20703, 37158, 37721, 41406, 57989, 75442, 75911, 113163, 115978, 151822, 173967, 226326, 227733, 347934, 414931, 455466, 637879, 829862, 1244793, 1275758, 1913637, 2489586, 3827274, 3885263, 7770526, 11655789, 23311578, 42737893, 85475786, 128213679, 256427358]

約数ペア:

[(1, 256427358), (2, 128213679), (3, 85475786), (6, 42737893), (11, 23311578), (22, 11655789), (33, 7770526), (66, 3885263), (67, 3827274), (103, 2489586), (134, 1913637), (201, 1275758), (206, 1244793), (309, 829862), (402, 637879), (563, 455466), (618, 414931), (737, 347934), (1126, 227733), (1133, 226326), (1474, 173967), (1689, 151822), (2211, 115978), (2266, 113163), (3378, 75911), (3399, 75442), (4422, 57989), (6193, 41406), (6798, 37721), (6901, 37158), (12386, 20703), (13802, 18579)]