277778228

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 626196480

約数和(自身を除く): 348418252

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 103, 124, 182, 206, 217, 239, 364, 403, 412, 434, 478, 721, 806, 868, 956, 1339, 1442, 1612, 1673, 2678, 2821, 2884, 3107, 3193, 3346, 5356, 5642, 6214, 6386, 6692, 7409, 9373, 11284, 12428, 12772, 14818, 18746, 21749, 22351, 24617, 29636, 37492, 41509, 43498, 44702, 49234, 51863, 83018, 86996, 89404, 96317, 98468, 103726, 166036, 172319, 192634, 207452, 290563, 320021, 344638, 385268, 581126, 640042, 674219, 689276, 763127, 1162252, 1280084, 1348438, 1526254, 2240147, 2696876, 3052508, 4480294, 5341889, 8960588, 9920651, 10683778, 19841302, 21367556, 39682604, 69444557, 138889114, 277778228]

約数ペア:

[(1, 277778228), (2, 138889114), (4, 69444557), (7, 39682604), (13, 21367556), (14, 19841302), (26, 10683778), (28, 9920651), (31, 8960588), (52, 5341889), (62, 4480294), (91, 3052508), (103, 2696876), (124, 2240147), (182, 1526254), (206, 1348438), (217, 1280084), (239, 1162252), (364, 763127), (403, 689276), (412, 674219), (434, 640042), (478, 581126), (721, 385268), (806, 344638), (868, 320021), (956, 290563), (1339, 207452), (1442, 192634), (1612, 172319), (1673, 166036), (2678, 103726), (2821, 98468), (2884, 96317), (3107, 89404), (3193, 86996), (3346, 83018), (5356, 51863), (5642, 49234), (6214, 44702), (6386, 43498), (6692, 41509), (7409, 37492), (9373, 29636), (11284, 24617), (12428, 22351), (12772, 21749), (14818, 18746)]