1279893428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{21563}}^1$

素因数の和:21668

約数の個数: 48

約数和(自身を含む): 2608381440

約数和(自身を除く): 1328488012

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 71, 76, 142, 209, 284, 418, 781, 836, 1349, 1562, 2698, 3124, 5396, 14839, 21563, 29678, 43126, 59356, 86252, 237193, 409697, 474386, 819394, 948772, 1530973, 1638788, 3061946, 4506667, 6123892, 9013334, 16840703, 18026668, 29088487, 33681406, 58176974, 67362812, 116353948, 319973357, 639946714, 1279893428]

約数ペア:

[(1, 1279893428), (2, 639946714), (4, 319973357), (11, 116353948), (19, 67362812), (22, 58176974), (38, 33681406), (44, 29088487), (71, 18026668), (76, 16840703), (142, 9013334), (209, 6123892), (284, 4506667), (418, 3061946), (781, 1638788), (836, 1530973), (1349, 948772), (1562, 819394), (2698, 474386), (3124, 409697), (5396, 237193), (14839, 86252), (21563, 59356), (29678, 43126)]