7854702940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{677}}^1\times {\mathrm{11839}}^1$

素因数の和:12539

約数の個数: 72

約数和(自身を含む): 19217882880

約数和(自身を除く): 11363179940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 677, 980, 1354, 2708, 3385, 4739, 6770, 9478, 11839, 13540, 18956, 23678, 23695, 33173, 47356, 47390, 59195, 66346, 82873, 94780, 118390, 132692, 165746, 165865, 236780, 331492, 331730, 414365, 580111, 663460, 828730, 1160222, 1657460, 2320444, 2900555, 5801110, 8015003, 11602220, 16030006, 32060012, 40075015, 56105021, 80150030, 112210042, 160300060, 224420084, 280525105, 392735147, 561050210, 785470294, 1122100420, 1570940588, 1963675735, 3927351470, 7854702940]

約数ペア:

[(1, 7854702940), (2, 3927351470), (4, 1963675735), (5, 1570940588), (7, 1122100420), (10, 785470294), (14, 561050210), (20, 392735147), (28, 280525105), (35, 224420084), (49, 160300060), (70, 112210042), (98, 80150030), (140, 56105021), (196, 40075015), (245, 32060012), (490, 16030006), (677, 11602220), (980, 8015003), (1354, 5801110), (2708, 2900555), (3385, 2320444), (4739, 1657460), (6770, 1160222), (9478, 828730), (11839, 663460), (13540, 580111), (18956, 414365), (23678, 331730), (23695, 331492), (33173, 236780), (47356, 165865), (47390, 165746), (59195, 132692), (66346, 118390), (82873, 94780)]